./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a --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 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 --- 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-b5237d8 [2022-11-21 09:11:25,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:11:25,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:11:25,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:11:25,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:11:25,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:11:25,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:11:25,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:11:25,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:11:25,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:11:25,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:11:25,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:11:25,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:11:25,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:11:25,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:11:25,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:11:25,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:11:25,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:11:25,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:11:25,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:11:25,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:11:25,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:11:25,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:11:25,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:11:25,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:11:25,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:11:25,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:11:25,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:11:25,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:11:25,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:11:25,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:11:25,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:11:25,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:11:25,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:11:25,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:11:25,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:11:25,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:11:25,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:11:25,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:11:25,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:11:25,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:11:25,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 09:11:25,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:11:25,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:11:25,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:11:25,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:11:25,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:11:25,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:11:25,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:11:25,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:11:25,251 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:11:25,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:11:25,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:11:25,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:11:25,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:11:25,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:11:25,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:11:25,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:11:25,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:11:25,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:11:25,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:11:25,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:11:25,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:11:25,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:11:25,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:11:25,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:11:25,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:11:25,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:11:25,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:11:25,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:11:25,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:11:25,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:11:25,257 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:11:25,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:11:25,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:11:25,258 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_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d4c6be733483d74e70aacf7c001bc7f4ca03733e33a8c0b4370e9380a7e003 [2022-11-21 09:11:25,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:11:25,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:11:25,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:11:25,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:11:25,651 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:11:25,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2022-11-21 09:11:28,771 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:11:29,148 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:11:29,149 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c [2022-11-21 09:11:29,171 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/data/092d4adba/2db928b35b0c43c2a2c138eaa1559906/FLAG4b55bee4c [2022-11-21 09:11:29,187 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/data/092d4adba/2db928b35b0c43c2a2c138eaa1559906 [2022-11-21 09:11:29,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:11:29,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:11:29,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:11:29,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:11:29,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:11:29,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:29" (1/1) ... [2022-11-21 09:11:29,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe056dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:29, skipping insertion in model container [2022-11-21 09:11:29,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:29" (1/1) ... [2022-11-21 09:11:29,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:11:29,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:11:29,949 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_e7b8cab0-3917-41b0-b381-b7e177833308/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2022-11-21 09:11:30,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:11:30,026 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:11:30,117 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_e7b8cab0-3917-41b0-b381-b7e177833308/sv-benchmarks/c/product-lines/email_spec11_product35.cil.c[61136,61149] [2022-11-21 09:11:30,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:11:30,159 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:11:30,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30 WrapperNode [2022-11-21 09:11:30,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:11:30,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:11:30,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:11:30,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:11:30,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,270 INFO L138 Inliner]: procedures = 137, calls = 246, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1142 [2022-11-21 09:11:30,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:11:30,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:11:30,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:11:30,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:11:30,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,379 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:11:30,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:11:30,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:11:30,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:11:30,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (1/1) ... [2022-11-21 09:11:30,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:11:30,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:30,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:11:30,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:11:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-21 09:11:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-21 09:11:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-21 09:11:30,493 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-21 09:11:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-21 09:11:30,493 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-21 09:11:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-21 09:11:30,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-21 09:11:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-21 09:11:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-21 09:11:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-21 09:11:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-21 09:11:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-21 09:11:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-21 09:11:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-21 09:11:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-21 09:11:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-21 09:11:30,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-21 09:11:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-21 09:11:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-21 09:11:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-21 09:11:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-21 09:11:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-21 09:11:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-21 09:11:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-21 09:11:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-21 09:11:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-21 09:11:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-21 09:11:30,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-21 09:11:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-21 09:11:30,500 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-21 09:11:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-21 09:11:30,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-21 09:11:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:11:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-21 09:11:30,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-21 09:11:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-21 09:11:30,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-21 09:11:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-21 09:11:30,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-21 09:11:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-21 09:11:30,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-21 09:11:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-21 09:11:30,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-21 09:11:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-21 09:11:30,503 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-21 09:11:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-21 09:11:30,504 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-21 09:11:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-21 09:11:30,504 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-21 09:11:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-21 09:11:30,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-21 09:11:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-21 09:11:30,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-21 09:11:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-21 09:11:30,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-21 09:11:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:11:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-21 09:11:30,507 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-21 09:11:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-21 09:11:30,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-21 09:11:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:11:30,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:11:30,765 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:11:30,777 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:11:32,025 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:11:32,050 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:11:32,050 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:11:32,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:11:32 BoogieIcfgContainer [2022-11-21 09:11:32,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:11:32,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:11:32,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:11:32,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:11:32,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:11:29" (1/3) ... [2022-11-21 09:11:32,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e0ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:11:32, skipping insertion in model container [2022-11-21 09:11:32,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:30" (2/3) ... [2022-11-21 09:11:32,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e0ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:11:32, skipping insertion in model container [2022-11-21 09:11:32,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:11:32" (3/3) ... [2022-11-21 09:11:32,065 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2022-11-21 09:11:32,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:11:32,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:11:32,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:11:32,174 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;@e9c09d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:11:32,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:11:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2022-11-21 09:11:32,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-21 09:11:32,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:32,206 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:32,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:32,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:32,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1750999411, now seen corresponding path program 1 times [2022-11-21 09:11:32,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:32,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603365016] [2022-11-21 09:11:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:32,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 09:11:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 09:11:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 09:11:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 09:11:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 09:11:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:11:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 09:11:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 09:11:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 09:11:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 09:11:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 09:11:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 09:11:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 09:11:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 09:11:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 09:11:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-21 09:11:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-21 09:11:33,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:33,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603365016] [2022-11-21 09:11:33,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603365016] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:33,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93101914] [2022-11-21 09:11:33,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:33,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:33,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:33,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:33,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 09:11:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:33,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 09:11:33,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:33,751 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-21 09:11:33,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:11:33,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93101914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:33,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:11:33,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-21 09:11:33,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39016645] [2022-11-21 09:11:33,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:33,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 09:11:33,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:33,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 09:11:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:11:33,819 INFO L87 Difference]: Start difference. First operand has 463 states, 358 states have (on average 1.5363128491620113) internal successors, (550), 363 states have internal predecessors, (550), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:11:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:33,936 INFO L93 Difference]: Finished difference Result 728 states and 1078 transitions. [2022-11-21 09:11:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 09:11:33,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2022-11-21 09:11:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:33,967 INFO L225 Difference]: With dead ends: 728 [2022-11-21 09:11:33,974 INFO L226 Difference]: Without dead ends: 456 [2022-11-21 09:11:33,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:11:33,985 INFO L413 NwaCegarLoop]: 694 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, 694 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 [2022-11-21 09:11:33,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:11:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-21 09:11:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2022-11-21 09:11:34,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 352 states have (on average 1.53125) internal successors, (539), 356 states have internal predecessors, (539), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-21 09:11:34,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 686 transitions. [2022-11-21 09:11:34,126 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 686 transitions. Word has length 167 [2022-11-21 09:11:34,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:34,128 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 686 transitions. [2022-11-21 09:11:34,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:11:34,129 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 686 transitions. [2022-11-21 09:11:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-21 09:11:34,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:34,134 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:34,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:11:34,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-21 09:11:34,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:34,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:34,343 INFO L85 PathProgramCache]: Analyzing trace with hash 305354623, now seen corresponding path program 1 times [2022-11-21 09:11:34,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:34,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930164434] [2022-11-21 09:11:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:34,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 09:11:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 09:11:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 09:11:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 09:11:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 09:11:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:11:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 09:11:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 09:11:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:11:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 09:11:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 09:11:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 09:11:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 09:11:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 09:11:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:11:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-21 09:11:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-21 09:11:34,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:34,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930164434] [2022-11-21 09:11:34,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930164434] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:34,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116785017] [2022-11-21 09:11:34,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:34,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:34,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:34,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:34,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 09:11:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:11:35,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-21 09:11:35,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:11:35,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116785017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:35,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:11:35,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-21 09:11:35,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324878289] [2022-11-21 09:11:35,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:35,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:11:35,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:35,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:11:35,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:11:35,187 INFO L87 Difference]: Start difference. First operand 456 states and 686 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:11:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:35,233 INFO L93 Difference]: Finished difference Result 718 states and 1056 transitions. [2022-11-21 09:11:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:11:35,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2022-11-21 09:11:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:35,238 INFO L225 Difference]: With dead ends: 718 [2022-11-21 09:11:35,238 INFO L226 Difference]: Without dead ends: 459 [2022-11-21 09:11:35,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:11:35,241 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 1 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1366 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 [2022-11-21 09:11:35,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1366 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:11:35,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-11-21 09:11:35,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2022-11-21 09:11:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 354 states have (on average 1.5282485875706215) internal successors, (541), 358 states have internal predecessors, (541), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-21 09:11:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 688 transitions. [2022-11-21 09:11:35,267 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 688 transitions. Word has length 168 [2022-11-21 09:11:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:35,267 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 688 transitions. [2022-11-21 09:11:35,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:11:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 688 transitions. [2022-11-21 09:11:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-21 09:11:35,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:35,272 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:35,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:11:35,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:35,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:35,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2123478460, now seen corresponding path program 1 times [2022-11-21 09:11:35,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:35,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206298262] [2022-11-21 09:11:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:35,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 09:11:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 09:11:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 09:11:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 09:11:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 09:11:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 09:11:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:11:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 09:11:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 09:11:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 09:11:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 09:11:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:11:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 09:11:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-21 09:11:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-21 09:11:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-21 09:11:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-21 09:11:35,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:35,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206298262] [2022-11-21 09:11:35,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206298262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:35,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997063498] [2022-11-21 09:11:35,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:35,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:35,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:35,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:35,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 09:11:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 09:11:36,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:36,302 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-21 09:11:36,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:11:36,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997063498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:36,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:11:36,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-21 09:11:36,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80890080] [2022-11-21 09:11:36,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:36,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:11:36,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:11:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:11:36,309 INFO L87 Difference]: Start difference. First operand 458 states and 688 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:11:36,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:36,365 INFO L93 Difference]: Finished difference Result 969 states and 1476 transitions. [2022-11-21 09:11:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:11:36,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 177 [2022-11-21 09:11:36,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:36,370 INFO L225 Difference]: With dead ends: 969 [2022-11-21 09:11:36,370 INFO L226 Difference]: Without dead ends: 538 [2022-11-21 09:11:36,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:11:36,373 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 142 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1343 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 [2022-11-21 09:11:36,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1343 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:11:36,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-21 09:11:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 530. [2022-11-21 09:11:36,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 412 states have (on average 1.5485436893203883) internal successors, (638), 416 states have internal predecessors, (638), 88 states have call successors, (88), 29 states have call predecessors, (88), 29 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-21 09:11:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 813 transitions. [2022-11-21 09:11:36,406 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 813 transitions. Word has length 177 [2022-11-21 09:11:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:36,409 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 813 transitions. [2022-11-21 09:11:36,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:11:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 813 transitions. [2022-11-21 09:11:36,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-21 09:11:36,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:36,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:36,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 09:11:36,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:36,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:36,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:36,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1741878275, now seen corresponding path program 1 times [2022-11-21 09:11:36,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:36,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849047904] [2022-11-21 09:11:36,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:36,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 09:11:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 09:11:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:11:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 09:11:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 09:11:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:11:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 09:11:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 09:11:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 09:11:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 09:11:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-21 09:11:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 09:11:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 09:11:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-21 09:11:36,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:36,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849047904] [2022-11-21 09:11:36,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849047904] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:36,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790002663] [2022-11-21 09:11:36,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:36,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:36,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:36,967 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:36,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 09:11:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:37,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 09:11:37,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-21 09:11:37,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:11:37,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790002663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:37,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:11:37,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-21 09:11:37,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248808147] [2022-11-21 09:11:37,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:37,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:11:37,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:37,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:11:37,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:11:37,426 INFO L87 Difference]: Start difference. First operand 530 states and 813 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 09:11:37,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:37,511 INFO L93 Difference]: Finished difference Result 1051 states and 1616 transitions. [2022-11-21 09:11:37,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:11:37,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 159 [2022-11-21 09:11:37,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:37,515 INFO L225 Difference]: With dead ends: 1051 [2022-11-21 09:11:37,516 INFO L226 Difference]: Without dead ends: 532 [2022-11-21 09:11:37,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:11:37,521 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 160 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2525 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 [2022-11-21 09:11:37,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2525 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:11:37,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-11-21 09:11:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-11-21 09:11:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 413 states have (on average 1.5472154963680387) internal successors, (639), 418 states have internal predecessors, (639), 88 states have call successors, (88), 29 states have call predecessors, (88), 30 states have return successors, (89), 86 states have call predecessors, (89), 87 states have call successors, (89) [2022-11-21 09:11:37,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 816 transitions. [2022-11-21 09:11:37,566 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 816 transitions. Word has length 159 [2022-11-21 09:11:37,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:37,567 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 816 transitions. [2022-11-21 09:11:37,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 09:11:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 816 transitions. [2022-11-21 09:11:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-21 09:11:37,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:37,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:37,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-21 09:11:37,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:37,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:37,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:37,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1528256094, now seen corresponding path program 1 times [2022-11-21 09:11:37,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:37,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006162914] [2022-11-21 09:11:37,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:37,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:37,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:37,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-21 09:11:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 09:11:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 09:11:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 09:11:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 09:11:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 09:11:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 09:11:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 09:11:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 09:11:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 09:11:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 09:11:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 09:11:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 09:11:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-21 09:11:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 09:11:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 09:11:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:11:38,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:38,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006162914] [2022-11-21 09:11:38,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006162914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:38,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822387074] [2022-11-21 09:11:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:38,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:38,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:38,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:38,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 09:11:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:38,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 09:11:38,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-21 09:11:38,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:11:38,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822387074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:38,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:11:38,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-21 09:11:38,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315367] [2022-11-21 09:11:38,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:38,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:11:38,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:38,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:11:38,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:11:38,600 INFO L87 Difference]: Start difference. First operand 532 states and 816 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 09:11:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:38,703 INFO L93 Difference]: Finished difference Result 1053 states and 1621 transitions. [2022-11-21 09:11:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:11:38,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 179 [2022-11-21 09:11:38,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:38,709 INFO L225 Difference]: With dead ends: 1053 [2022-11-21 09:11:38,709 INFO L226 Difference]: Without dead ends: 534 [2022-11-21 09:11:38,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-21 09:11:38,712 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 159 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2514 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 [2022-11-21 09:11:38,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2514 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:11:38,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-21 09:11:38,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2022-11-21 09:11:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2022-11-21 09:11:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 822 transitions. [2022-11-21 09:11:38,749 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 822 transitions. Word has length 179 [2022-11-21 09:11:38,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:38,750 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 822 transitions. [2022-11-21 09:11:38,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 09:11:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 822 transitions. [2022-11-21 09:11:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-21 09:11:38,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:38,756 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:38,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 09:11:38,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:38,965 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:38,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1369621267, now seen corresponding path program 1 times [2022-11-21 09:11:38,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:38,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776463470] [2022-11-21 09:11:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:38,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:11:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 09:11:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 09:11:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 09:11:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 09:11:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 09:11:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 09:11:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 09:11:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 09:11:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 09:11:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 09:11:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 09:11:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-21 09:11:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-21 09:11:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 09:11:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-21 09:11:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-21 09:11:39,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:39,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776463470] [2022-11-21 09:11:39,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776463470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:39,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:39,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 09:11:39,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882710513] [2022-11-21 09:11:39,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:39,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 09:11:39,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:39,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 09:11:39,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:11:39,322 INFO L87 Difference]: Start difference. First operand 534 states and 822 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 09:11:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:43,019 INFO L93 Difference]: Finished difference Result 1275 states and 1989 transitions. [2022-11-21 09:11:43,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:11:43,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 180 [2022-11-21 09:11:43,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:43,026 INFO L225 Difference]: With dead ends: 1275 [2022-11-21 09:11:43,027 INFO L226 Difference]: Without dead ends: 764 [2022-11-21 09:11:43,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-21 09:11:43,032 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1810 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3481 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 4234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 3481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:43,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 1247 Invalid, 4234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [753 Valid, 3481 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-21 09:11:43,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-11-21 09:11:43,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 534. [2022-11-21 09:11:43,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 414 states have (on average 1.5458937198067633) internal successors, (640), 420 states have internal predecessors, (640), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (93), 86 states have call predecessors, (93), 87 states have call successors, (93) [2022-11-21 09:11:43,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 821 transitions. [2022-11-21 09:11:43,139 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 821 transitions. Word has length 180 [2022-11-21 09:11:43,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:43,141 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 821 transitions. [2022-11-21 09:11:43,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-21 09:11:43,142 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 821 transitions. [2022-11-21 09:11:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-21 09:11:43,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:43,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:43,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:11:43,147 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:43,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:43,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1722056232, now seen corresponding path program 1 times [2022-11-21 09:11:43,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:43,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505338965] [2022-11-21 09:11:43,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:43,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:11:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 09:11:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 09:11:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 09:11:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 09:11:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 09:11:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 09:11:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 09:11:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 09:11:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 09:11:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 09:11:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 09:11:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-21 09:11:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-21 09:11:43,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505338965] [2022-11-21 09:11:43,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505338965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:43,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:43,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 09:11:43,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191343261] [2022-11-21 09:11:43,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:43,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 09:11:43,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:43,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 09:11:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:11:43,446 INFO L87 Difference]: Start difference. First operand 534 states and 821 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 09:11:46,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:46,945 INFO L93 Difference]: Finished difference Result 1277 states and 1992 transitions. [2022-11-21 09:11:46,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:11:46,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2022-11-21 09:11:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:46,951 INFO L225 Difference]: With dead ends: 1277 [2022-11-21 09:11:46,952 INFO L226 Difference]: Without dead ends: 766 [2022-11-21 09:11:46,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-21 09:11:46,955 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1835 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 4208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:46,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 1248 Invalid, 4208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [737 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-21 09:11:46,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-11-21 09:11:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2022-11-21 09:11:47,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (95), 86 states have call predecessors, (95), 87 states have call successors, (95) [2022-11-21 09:11:47,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 824 transitions. [2022-11-21 09:11:47,007 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 824 transitions. Word has length 162 [2022-11-21 09:11:47,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:47,008 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 824 transitions. [2022-11-21 09:11:47,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 09:11:47,008 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 824 transitions. [2022-11-21 09:11:47,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-21 09:11:47,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:47,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:47,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:11:47,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:47,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:47,013 INFO L85 PathProgramCache]: Analyzing trace with hash -604041599, now seen corresponding path program 1 times [2022-11-21 09:11:47,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:47,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655265913] [2022-11-21 09:11:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:47,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:11:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:11:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 09:11:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 09:11:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 09:11:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 09:11:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 09:11:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 09:11:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 09:11:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 09:11:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 09:11:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 09:11:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 09:11:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,340 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-21 09:11:47,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:47,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655265913] [2022-11-21 09:11:47,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655265913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:47,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:47,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 09:11:47,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497701765] [2022-11-21 09:11:47,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:47,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:11:47,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:47,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:11:47,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:11:47,344 INFO L87 Difference]: Start difference. First operand 536 states and 824 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-21 09:11:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:51,932 INFO L93 Difference]: Finished difference Result 1275 states and 1987 transitions. [2022-11-21 09:11:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 09:11:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 163 [2022-11-21 09:11:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:51,938 INFO L225 Difference]: With dead ends: 1275 [2022-11-21 09:11:51,938 INFO L226 Difference]: Without dead ends: 766 [2022-11-21 09:11:51,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-21 09:11:51,941 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 2074 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5485 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 6306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 5485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:51,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 1628 Invalid, 6306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [821 Valid, 5485 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-21 09:11:51,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-11-21 09:11:51,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 536. [2022-11-21 09:11:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 415 states have (on average 1.544578313253012) internal successors, (641), 422 states have internal predecessors, (641), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (94), 86 states have call predecessors, (94), 87 states have call successors, (94) [2022-11-21 09:11:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 823 transitions. [2022-11-21 09:11:51,995 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 823 transitions. Word has length 163 [2022-11-21 09:11:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:51,996 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 823 transitions. [2022-11-21 09:11:51,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-21 09:11:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 823 transitions. [2022-11-21 09:11:52,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-21 09:11:52,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:52,000 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:52,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:11:52,001 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:52,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:52,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2106985160, now seen corresponding path program 2 times [2022-11-21 09:11:52,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:52,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932099681] [2022-11-21 09:11:52,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:52,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:11:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:11:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 09:11:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 09:11:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 09:11:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 09:11:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 09:11:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 09:11:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-21 09:11:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 09:11:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 09:11:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-21 09:11:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 09:11:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-21 09:11:52,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:52,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932099681] [2022-11-21 09:11:52,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932099681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:52,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:52,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 09:11:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182525011] [2022-11-21 09:11:52,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:52,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:11:52,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:52,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:11:52,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:11:52,307 INFO L87 Difference]: Start difference. First operand 536 states and 823 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-21 09:11:56,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:56,754 INFO L93 Difference]: Finished difference Result 1277 states and 1993 transitions. [2022-11-21 09:11:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 09:11:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 164 [2022-11-21 09:11:56,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:56,760 INFO L225 Difference]: With dead ends: 1277 [2022-11-21 09:11:56,760 INFO L226 Difference]: Without dead ends: 768 [2022-11-21 09:11:56,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-21 09:11:56,763 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1937 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5801 mSolverCounterSat, 778 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 6579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 5801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:56,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 1629 Invalid, 6579 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [778 Valid, 5801 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-21 09:11:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-11-21 09:11:56,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 538. [2022-11-21 09:11:56,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 416 states have (on average 1.5432692307692308) internal successors, (642), 424 states have internal predecessors, (642), 88 states have call successors, (88), 29 states have call predecessors, (88), 33 states have return successors, (99), 86 states have call predecessors, (99), 87 states have call successors, (99) [2022-11-21 09:11:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 829 transitions. [2022-11-21 09:11:56,825 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 829 transitions. Word has length 164 [2022-11-21 09:11:56,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:56,826 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 829 transitions. [2022-11-21 09:11:56,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-21 09:11:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 829 transitions. [2022-11-21 09:11:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-21 09:11:56,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:56,830 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:56,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:11:56,831 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:56,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1914006118, now seen corresponding path program 1 times [2022-11-21 09:11:56,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:56,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519608075] [2022-11-21 09:11:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:56,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:11:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:11:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:11:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:11:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 09:11:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:11:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 09:11:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 09:11:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 09:11:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 09:11:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 09:11:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-21 09:11:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:11:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 09:11:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-21 09:11:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,173 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-21 09:11:57,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:57,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519608075] [2022-11-21 09:11:57,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519608075] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:57,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921847922] [2022-11-21 09:11:57,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:57,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:57,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:57,175 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:57,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 09:11:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:57,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 09:11:57,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:11:57,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:11:57,725 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:11:57,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921847922] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:11:57,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:11:57,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-21 09:11:57,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961770870] [2022-11-21 09:11:57,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:11:57,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 09:11:57,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:57,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 09:11:57,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-21 09:11:57,729 INFO L87 Difference]: Start difference. First operand 538 states and 829 transitions. Second operand has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-11-21 09:12:03,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:03,892 INFO L93 Difference]: Finished difference Result 2186 states and 3631 transitions. [2022-11-21 09:12:03,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 09:12:03,892 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 165 [2022-11-21 09:12:03,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:03,903 INFO L225 Difference]: With dead ends: 2186 [2022-11-21 09:12:03,903 INFO L226 Difference]: Without dead ends: 1679 [2022-11-21 09:12:03,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-21 09:12:03,907 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 4667 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 7665 mSolverCounterSat, 1817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 9482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1817 IncrementalHoareTripleChecker+Valid, 7665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:03,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4669 Valid, 3630 Invalid, 9482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1817 Valid, 7665 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-21 09:12:03,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2022-11-21 09:12:04,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 981. [2022-11-21 09:12:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 780 states have (on average 1.6) internal successors, (1248), 788 states have internal predecessors, (1248), 167 states have call successors, (167), 29 states have call predecessors, (167), 33 states have return successors, (188), 165 states have call predecessors, (188), 166 states have call successors, (188) [2022-11-21 09:12:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1603 transitions. [2022-11-21 09:12:04,032 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1603 transitions. Word has length 165 [2022-11-21 09:12:04,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:04,032 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1603 transitions. [2022-11-21 09:12:04,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.642857142857142) internal successors, (163), 11 states have internal predecessors, (163), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-11-21 09:12:04,033 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1603 transitions. [2022-11-21 09:12:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-21 09:12:04,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:04,040 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:04,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:04,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b8cab0-3917-41b0-b381-b7e177833308/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 09:12:04,247 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:04,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:04,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1267507049, now seen corresponding path program 1 times [2022-11-21 09:12:04,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:04,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33437237] [2022-11-21 09:12:04,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:04,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 09:12:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 09:12:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 09:12:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 09:12:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 09:12:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 09:12:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 09:12:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 09:12:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 09:12:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:12:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-21 09:12:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:12:04,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:04,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33437237] [2022-11-21 09:12:04,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33437237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:04,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:04,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:04,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208459302] [2022-11-21 09:12:04,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:04,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:04,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:04,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:04,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:04,429 INFO L87 Difference]: Start difference. First operand 981 states and 1603 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:07,199 INFO L93 Difference]: Finished difference Result 2537 states and 4239 transitions. [2022-11-21 09:12:07,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:07,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-11-21 09:12:07,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:07,210 INFO L225 Difference]: With dead ends: 2537 [2022-11-21 09:12:07,210 INFO L226 Difference]: Without dead ends: 1634 [2022-11-21 09:12:07,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:07,215 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1849 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 835 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:07,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 1091 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [835 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-21 09:12:07,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2022-11-21 09:12:07,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1396. [2022-11-21 09:12:07,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1116 states have (on average 1.6200716845878136) internal successors, (1808), 1124 states have internal predecessors, (1808), 246 states have call successors, (246), 29 states have call predecessors, (246), 33 states have return successors, (277), 244 states have call predecessors, (277), 245 states have call successors, (277) [2022-11-21 09:12:07,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2331 transitions. [2022-11-21 09:12:07,394 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2331 transitions. Word has length 168 [2022-11-21 09:12:07,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:07,395 INFO L495 AbstractCegarLoop]: Abstraction has 1396 states and 2331 transitions. [2022-11-21 09:12:07,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:07,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2331 transitions. [2022-11-21 09:12:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-21 09:12:07,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:07,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:07,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:12:07,405 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:07,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:07,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1970157718, now seen corresponding path program 1 times [2022-11-21 09:12:07,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:07,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400711770] [2022-11-21 09:12:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:07,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 09:12:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 09:12:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 09:12:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 09:12:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 09:12:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 09:12:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 09:12:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 09:12:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 09:12:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-21 09:12:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 09:12:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:12:07,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:07,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400711770] [2022-11-21 09:12:07,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400711770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:07,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:07,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:07,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843613968] [2022-11-21 09:12:07,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:07,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:07,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:07,557 INFO L87 Difference]: Start difference. First operand 1396 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:10,364 INFO L93 Difference]: Finished difference Result 3576 states and 6052 transitions. [2022-11-21 09:12:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:10,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-11-21 09:12:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:10,379 INFO L225 Difference]: With dead ends: 3576 [2022-11-21 09:12:10,379 INFO L226 Difference]: Without dead ends: 2311 [2022-11-21 09:12:10,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:10,384 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1806 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 825 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1825 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 825 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:10,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1825 Valid, 1078 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [825 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-21 09:12:10,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-11-21 09:12:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2073. [2022-11-21 09:12:10,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1674 states have (on average 1.6308243727598566) internal successors, (2730), 1682 states have internal predecessors, (2730), 365 states have call successors, (365), 29 states have call predecessors, (365), 33 states have return successors, (396), 363 states have call predecessors, (396), 364 states have call successors, (396) [2022-11-21 09:12:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3491 transitions. [2022-11-21 09:12:10,682 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3491 transitions. Word has length 169 [2022-11-21 09:12:10,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:10,682 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 3491 transitions. [2022-11-21 09:12:10,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3491 transitions. [2022-11-21 09:12:10,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-21 09:12:10,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:10,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:10,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:12:10,695 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash -921327383, now seen corresponding path program 1 times [2022-11-21 09:12:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:10,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375586223] [2022-11-21 09:12:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 09:12:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 09:12:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 09:12:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 09:12:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 09:12:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 09:12:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 09:12:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 09:12:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 09:12:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 09:12:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-21 09:12:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,857 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:12:10,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:10,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375586223] [2022-11-21 09:12:10,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375586223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:10,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:10,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:10,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106083765] [2022-11-21 09:12:10,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:10,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:10,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:10,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:10,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:10,861 INFO L87 Difference]: Start difference. First operand 2073 states and 3491 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:13,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:13,674 INFO L93 Difference]: Finished difference Result 5161 states and 8831 transitions. [2022-11-21 09:12:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:13,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2022-11-21 09:12:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:13,703 INFO L225 Difference]: With dead ends: 5161 [2022-11-21 09:12:13,703 INFO L226 Difference]: Without dead ends: 3354 [2022-11-21 09:12:13,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:13,711 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1784 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:13,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 1042 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 09:12:13,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2022-11-21 09:12:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 3116. [2022-11-21 09:12:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2555 states have (on average 1.6391389432485324) internal successors, (4188), 2563 states have internal predecessors, (4188), 527 states have call successors, (527), 29 states have call predecessors, (527), 33 states have return successors, (574), 525 states have call predecessors, (574), 526 states have call successors, (574) [2022-11-21 09:12:14,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5289 transitions. [2022-11-21 09:12:14,196 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5289 transitions. Word has length 170 [2022-11-21 09:12:14,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:14,197 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 5289 transitions. [2022-11-21 09:12:14,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:14,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5289 transitions. [2022-11-21 09:12:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-21 09:12:14,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:14,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:14,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:12:14,220 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:14,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash 696120073, now seen corresponding path program 1 times [2022-11-21 09:12:14,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:14,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528037639] [2022-11-21 09:12:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:14,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 09:12:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 09:12:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 09:12:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 09:12:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 09:12:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 09:12:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-21 09:12:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:12:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 09:12:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-21 09:12:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 09:12:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:12:14,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:14,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528037639] [2022-11-21 09:12:14,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528037639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:14,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:14,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:14,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042774928] [2022-11-21 09:12:14,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:14,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:14,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:14,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:14,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:14,386 INFO L87 Difference]: Start difference. First operand 3116 states and 5289 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:17,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:17,326 INFO L93 Difference]: Finished difference Result 7675 states and 13246 transitions. [2022-11-21 09:12:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:17,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-11-21 09:12:17,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:17,360 INFO L225 Difference]: With dead ends: 7675 [2022-11-21 09:12:17,360 INFO L226 Difference]: Without dead ends: 5044 [2022-11-21 09:12:17,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:17,371 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1773 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:17,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 1042 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [805 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 09:12:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2022-11-21 09:12:18,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 4806. [2022-11-21 09:12:18,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4000 states have (on average 1.645) internal successors, (6580), 4008 states have internal predecessors, (6580), 772 states have call successors, (772), 29 states have call predecessors, (772), 33 states have return successors, (845), 770 states have call predecessors, (845), 771 states have call successors, (845) [2022-11-21 09:12:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 8197 transitions. [2022-11-21 09:12:18,089 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 8197 transitions. Word has length 171 [2022-11-21 09:12:18,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:18,090 INFO L495 AbstractCegarLoop]: Abstraction has 4806 states and 8197 transitions. [2022-11-21 09:12:18,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 8197 transitions. [2022-11-21 09:12:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-21 09:12:18,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:18,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:18,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 09:12:18,121 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:18,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash -253267998, now seen corresponding path program 1 times [2022-11-21 09:12:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:18,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475980760] [2022-11-21 09:12:18,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:18,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 09:12:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 09:12:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 09:12:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 09:12:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 09:12:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 09:12:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 09:12:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 09:12:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 09:12:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-21 09:12:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-21 09:12:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 09:12:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 09:12:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-21 09:12:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:12:18,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:18,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475980760] [2022-11-21 09:12:18,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475980760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:18,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:18,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:18,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625680380] [2022-11-21 09:12:18,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:18,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:18,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:18,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:18,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:18,294 INFO L87 Difference]: Start difference. First operand 4806 states and 8197 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:12:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:21,574 INFO L93 Difference]: Finished difference Result 11876 states and 20623 transitions. [2022-11-21 09:12:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:21,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 191 [2022-11-21 09:12:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:21,616 INFO L225 Difference]: With dead ends: 11876 [2022-11-21 09:12:21,617 INFO L226 Difference]: Without dead ends: 7887 [2022-11-21 09:12:21,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:21,629 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1923 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:21,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 1069 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-21 09:12:21,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2022-11-21 09:12:22,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 7649. [2022-11-21 09:12:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 6350 states have (on average 1.6439370078740156) internal successors, (10439), 6358 states have internal predecessors, (10439), 1265 states have call successors, (1265), 29 states have call predecessors, (1265), 33 states have return successors, (1382), 1263 states have call predecessors, (1382), 1264 states have call successors, (1382) [2022-11-21 09:12:22,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 13086 transitions. [2022-11-21 09:12:22,714 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 13086 transitions. Word has length 191 [2022-11-21 09:12:22,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:22,714 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 13086 transitions. [2022-11-21 09:12:22,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:12:22,715 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 13086 transitions. [2022-11-21 09:12:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-21 09:12:22,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:22,749 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:22,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 09:12:22,749 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash 819222693, now seen corresponding path program 1 times [2022-11-21 09:12:22,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:22,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636960688] [2022-11-21 09:12:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:22,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 09:12:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 09:12:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 09:12:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 09:12:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 09:12:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 09:12:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 09:12:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 09:12:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 09:12:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 09:12:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-21 09:12:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:12:22,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:22,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636960688] [2022-11-21 09:12:22,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636960688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:22,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:22,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:22,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874948665] [2022-11-21 09:12:22,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:22,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:22,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:22,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:22,892 INFO L87 Difference]: Start difference. First operand 7649 states and 13086 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:26,592 INFO L93 Difference]: Finished difference Result 19491 states and 33899 transitions. [2022-11-21 09:12:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:26,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2022-11-21 09:12:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:26,648 INFO L225 Difference]: With dead ends: 19491 [2022-11-21 09:12:26,648 INFO L226 Difference]: Without dead ends: 13061 [2022-11-21 09:12:26,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:26,669 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1824 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:26,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 1052 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [814 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 09:12:26,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2022-11-21 09:12:28,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 12823. [2022-11-21 09:12:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12823 states, 10702 states have (on average 1.6447393010652214) internal successors, (17602), 10710 states have internal predecessors, (17602), 2087 states have call successors, (2087), 29 states have call predecessors, (2087), 33 states have return successors, (2282), 2085 states have call predecessors, (2282), 2086 states have call successors, (2282) [2022-11-21 09:12:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12823 states to 12823 states and 21971 transitions. [2022-11-21 09:12:28,298 INFO L78 Accepts]: Start accepts. Automaton has 12823 states and 21971 transitions. Word has length 173 [2022-11-21 09:12:28,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:28,299 INFO L495 AbstractCegarLoop]: Abstraction has 12823 states and 21971 transitions. [2022-11-21 09:12:28,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12823 states and 21971 transitions. [2022-11-21 09:12:28,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-21 09:12:28,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:28,345 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:28,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 09:12:28,346 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:28,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:28,346 INFO L85 PathProgramCache]: Analyzing trace with hash -319875777, now seen corresponding path program 1 times [2022-11-21 09:12:28,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:28,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691127942] [2022-11-21 09:12:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:28,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 09:12:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 09:12:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:12:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 09:12:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 09:12:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 09:12:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 09:12:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 09:12:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-21 09:12:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 09:12:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 09:12:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:12:28,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:28,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691127942] [2022-11-21 09:12:28,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691127942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:28,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:28,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:28,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933402252] [2022-11-21 09:12:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:28,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:28,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:28,490 INFO L87 Difference]: Start difference. First operand 12823 states and 21971 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:32,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:32,738 INFO L93 Difference]: Finished difference Result 30974 states and 53599 transitions. [2022-11-21 09:12:32,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:32,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2022-11-21 09:12:32,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:32,825 INFO L225 Difference]: With dead ends: 30974 [2022-11-21 09:12:32,825 INFO L226 Difference]: Without dead ends: 20374 [2022-11-21 09:12:32,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:32,856 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1861 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:32,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 1016 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 09:12:32,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2022-11-21 09:12:35,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 20136. [2022-11-21 09:12:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20136 states, 16812 states have (on average 1.6207470854151795) internal successors, (27248), 16820 states have internal predecessors, (27248), 3290 states have call successors, (3290), 29 states have call predecessors, (3290), 33 states have return successors, (3629), 3288 states have call predecessors, (3629), 3289 states have call successors, (3629) [2022-11-21 09:12:35,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20136 states to 20136 states and 34167 transitions. [2022-11-21 09:12:35,544 INFO L78 Accepts]: Start accepts. Automaton has 20136 states and 34167 transitions. Word has length 174 [2022-11-21 09:12:35,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:35,545 INFO L495 AbstractCegarLoop]: Abstraction has 20136 states and 34167 transitions. [2022-11-21 09:12:35,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:35,545 INFO L276 IsEmpty]: Start isEmpty. Operand 20136 states and 34167 transitions. [2022-11-21 09:12:35,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-21 09:12:35,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:35,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:35,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 09:12:35,602 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:35,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:35,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1594675541, now seen corresponding path program 1 times [2022-11-21 09:12:35,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:35,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026585611] [2022-11-21 09:12:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:35,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 09:12:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 09:12:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 09:12:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 09:12:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 09:12:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 09:12:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 09:12:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 09:12:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 09:12:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 09:12:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 09:12:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-21 09:12:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 09:12:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 09:12:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 09:12:35,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:35,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026585611] [2022-11-21 09:12:35,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026585611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:35,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:35,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:35,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000585920] [2022-11-21 09:12:35,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:35,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:35,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:35,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:35,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:35,788 INFO L87 Difference]: Start difference. First operand 20136 states and 34167 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:12:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:41,881 INFO L93 Difference]: Finished difference Result 53416 states and 92133 transitions. [2022-11-21 09:12:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:41,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 194 [2022-11-21 09:12:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:42,023 INFO L225 Difference]: With dead ends: 53416 [2022-11-21 09:12:42,024 INFO L226 Difference]: Without dead ends: 36180 [2022-11-21 09:12:42,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:42,066 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1766 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:42,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 1046 Invalid, 2900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 09:12:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36180 states. [2022-11-21 09:12:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36180 to 35942. [2022-11-21 09:12:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35942 states, 30168 states have (on average 1.61793953858393) internal successors, (48810), 30176 states have internal predecessors, (48810), 5740 states have call successors, (5740), 29 states have call predecessors, (5740), 33 states have return successors, (6353), 5738 states have call predecessors, (6353), 5739 states have call successors, (6353) [2022-11-21 09:12:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35942 states to 35942 states and 60903 transitions. [2022-11-21 09:12:46,299 INFO L78 Accepts]: Start accepts. Automaton has 35942 states and 60903 transitions. Word has length 194 [2022-11-21 09:12:46,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:46,300 INFO L495 AbstractCegarLoop]: Abstraction has 35942 states and 60903 transitions. [2022-11-21 09:12:46,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 09:12:46,300 INFO L276 IsEmpty]: Start isEmpty. Operand 35942 states and 60903 transitions. [2022-11-21 09:12:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-21 09:12:46,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:46,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:46,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 09:12:46,375 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:46,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:46,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1836023685, now seen corresponding path program 1 times [2022-11-21 09:12:46,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:46,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023543628] [2022-11-21 09:12:46,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:46,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 09:12:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 09:12:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 09:12:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:12:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 09:12:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 09:12:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 09:12:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 09:12:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 09:12:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 09:12:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 09:12:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 09:12:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 09:12:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-21 09:12:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 09:12:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:46,530 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-21 09:12:46,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:46,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023543628] [2022-11-21 09:12:46,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023543628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:46,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:46,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:12:46,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427506679] [2022-11-21 09:12:46,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:46,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:12:46,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:46,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:12:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:46,533 INFO L87 Difference]: Start difference. First operand 35942 states and 60903 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:54,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:54,649 INFO L93 Difference]: Finished difference Result 98263 states and 168692 transitions. [2022-11-21 09:12:54,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:12:54,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-11-21 09:12:54,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:54,867 INFO L225 Difference]: With dead ends: 98263 [2022-11-21 09:12:54,867 INFO L226 Difference]: Without dead ends: 66177 [2022-11-21 09:12:54,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:12:54,941 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1842 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 2822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:54,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 1049 Invalid, 2822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 09:12:55,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66177 states.