./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R --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 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 --- 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-38b53e6 [2022-11-25 15:26:39,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:26:39,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:26:39,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:26:39,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:26:39,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:26:39,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:26:39,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:26:39,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:26:39,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:26:39,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:26:39,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:26:39,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:26:39,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:26:39,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:26:39,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:26:39,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:26:39,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:26:39,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:26:39,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:26:39,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:26:39,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:26:39,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:26:39,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:26:39,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:26:39,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:26:39,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:26:39,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:26:39,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:26:39,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:26:39,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:26:39,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:26:39,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:26:39,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:26:39,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:26:39,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:26:39,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:26:39,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:26:39,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:26:39,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:26:39,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:26:39,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:26:39,392 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:26:39,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:26:39,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:26:39,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:26:39,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:26:39,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:26:39,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:26:39,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:26:39,396 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:26:39,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:26:39,397 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:26:39,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:26:39,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:26:39,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:26:39,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:26:39,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:26:39,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:26:39,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:26:39,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:26:39,399 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:26:39,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:26:39,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:26:39,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:26:39,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:26:39,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:26:39,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:26:39,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:26:39,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:26:39,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:26:39,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:26:39,401 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:26:39,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:26:39,402 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:26:39,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:26:39,402 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 [2022-11-25 15:26:39,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:26:39,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:26:39,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:26:39,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:26:39,751 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:26:39,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2022-11-25 15:26:42,922 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:26:43,346 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:26:43,349 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2022-11-25 15:26:43,378 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/data/85b51bfe0/5fa7678a6e0c4049aba75253b481822c/FLAG73089121d [2022-11-25 15:26:43,401 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/data/85b51bfe0/5fa7678a6e0c4049aba75253b481822c [2022-11-25 15:26:43,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:26:43,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:26:43,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:26:43,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:26:43,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:26:43,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:26:43" (1/1) ... [2022-11-25 15:26:43,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3aa217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:43, skipping insertion in model container [2022-11-25 15:26:43,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:26:43" (1/1) ... [2022-11-25 15:26:43,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:26:43,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:26:43,805 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_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2022-11-25 15:26:43,928 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:43,940 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:43,941 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:43,949 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:43,975 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:43,977 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,155 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,157 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,160 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,164 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,165 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:44,179 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:26:44,222 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_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2022-11-25 15:26:44,255 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,261 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,267 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,272 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,286 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,289 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,360 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,374 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,376 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,383 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,397 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:44,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:44,456 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:26:44,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44 WrapperNode [2022-11-25 15:26:44,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:26:44,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:44,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:26:44,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:26:44,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,560 INFO L138 Inliner]: procedures = 152, calls = 292, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1344 [2022-11-25 15:26:44,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:44,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:26:44,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:26:44,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:26:44,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:26:44,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:26:44,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:26:44,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:26:44,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (1/1) ... [2022-11-25 15:26:44,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:26:44,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:44,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:26:44,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:26:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-25 15:26:44,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-25 15:26:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2022-11-25 15:26:44,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2022-11-25 15:26:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2022-11-25 15:26:44,816 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2022-11-25 15:26:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-25 15:26:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-25 15:26:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-25 15:26:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-25 15:26:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-25 15:26:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-25 15:26:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-25 15:26:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-25 15:26:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2022-11-25 15:26:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2022-11-25 15:26:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-25 15:26:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-25 15:26:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2022-11-25 15:26:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2022-11-25 15:26:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-25 15:26:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-25 15:26:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-25 15:26:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-25 15:26:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-25 15:26:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-25 15:26:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2022-11-25 15:26:44,821 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2022-11-25 15:26:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2022-11-25 15:26:44,821 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2022-11-25 15:26:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-25 15:26:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-25 15:26:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-25 15:26:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-25 15:26:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-25 15:26:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-25 15:26:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-25 15:26:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2022-11-25 15:26:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2022-11-25 15:26:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-25 15:26:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-25 15:26:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-25 15:26:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-25 15:26:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-25 15:26:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-25 15:26:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2022-11-25 15:26:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2022-11-25 15:26:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:26:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-25 15:26:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-25 15:26:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-25 15:26:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-25 15:26:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2022-11-25 15:26:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2022-11-25 15:26:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2022-11-25 15:26:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2022-11-25 15:26:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2022-11-25 15:26:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2022-11-25 15:26:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-25 15:26:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-25 15:26:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-25 15:26:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-25 15:26:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-11-25 15:26:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-11-25 15:26:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-25 15:26:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-25 15:26:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-25 15:26:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-25 15:26:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-25 15:26:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-25 15:26:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-25 15:26:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-25 15:26:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-25 15:26:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-25 15:26:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2022-11-25 15:26:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2022-11-25 15:26:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2022-11-25 15:26:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2022-11-25 15:26:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-25 15:26:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-25 15:26:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-25 15:26:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-25 15:26:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:26:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-25 15:26:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-25 15:26:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2022-11-25 15:26:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2022-11-25 15:26:44,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-11-25 15:26:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-11-25 15:26:44,833 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-25 15:26:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-25 15:26:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:26:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:26:45,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:26:45,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:26:46,248 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:26:46,261 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:26:46,261 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:26:46,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:46 BoogieIcfgContainer [2022-11-25 15:26:46,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:26:46,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:26:46,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:26:46,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:26:46,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:26:43" (1/3) ... [2022-11-25 15:26:46,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5345d9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:46, skipping insertion in model container [2022-11-25 15:26:46,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:44" (2/3) ... [2022-11-25 15:26:46,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5345d9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:46, skipping insertion in model container [2022-11-25 15:26:46,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:46" (3/3) ... [2022-11-25 15:26:46,273 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_productSimulator.cil.c [2022-11-25 15:26:46,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:26:46,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:26:46,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:26:46,446 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;@5748ad3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:26:46,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:26:46,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) [2022-11-25 15:26:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-25 15:26:46,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:46,487 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:46,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:46,494 INFO L85 PathProgramCache]: Analyzing trace with hash 531601205, now seen corresponding path program 1 times [2022-11-25 15:26:46,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:46,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627865739] [2022-11-25 15:26:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:46,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:26:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:26:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:26:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:26:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:26:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:26:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:26:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:26:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:26:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 15:26:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:26:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:26:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 15:26:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 15:26:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 15:26:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 15:26:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-25 15:26:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-25 15:26:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-25 15:26:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-25 15:26:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-25 15:26:47,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:47,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627865739] [2022-11-25 15:26:47,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627865739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:47,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:47,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:26:47,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964898031] [2022-11-25 15:26:47,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:47,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:26:47,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:47,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:26:47,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:47,434 INFO L87 Difference]: Start difference. First operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:26:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:50,033 INFO L93 Difference]: Finished difference Result 1093 states and 1654 transitions. [2022-11-25 15:26:50,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:26:50,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 180 [2022-11-25 15:26:50,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:50,067 INFO L225 Difference]: With dead ends: 1093 [2022-11-25 15:26:50,068 INFO L226 Difference]: Without dead ends: 741 [2022-11-25 15:26:50,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:26:50,085 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1365 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:50,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 1035 Invalid, 1770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [644 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 15:26:50,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2022-11-25 15:26:50,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 606. [2022-11-25 15:26:50,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.5078299776286352) internal successors, (674), 467 states have internal predecessors, (674), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2022-11-25 15:26:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 901 transitions. [2022-11-25 15:26:50,307 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 901 transitions. Word has length 180 [2022-11-25 15:26:50,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:50,310 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 901 transitions. [2022-11-25 15:26:50,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:26:50,311 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 901 transitions. [2022-11-25 15:26:50,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-25 15:26:50,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:50,326 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:50,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:26:50,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash -749456867, now seen corresponding path program 1 times [2022-11-25 15:26:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:50,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019067642] [2022-11-25 15:26:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:50,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:26:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:26:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:26:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:26:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:26:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:26:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:26:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:26:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:26:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 15:26:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 15:26:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 15:26:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 15:26:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 15:26:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-25 15:26:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 15:26:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 15:26:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 15:26:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 15:26:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 15:26:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-25 15:26:50,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:50,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019067642] [2022-11-25 15:26:50,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019067642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:50,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:50,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:26:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614070280] [2022-11-25 15:26:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:50,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:26:50,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:50,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:26:50,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:26:50,820 INFO L87 Difference]: Start difference. First operand 606 states and 901 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:26:54,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:54,408 INFO L93 Difference]: Finished difference Result 1311 states and 1977 transitions. [2022-11-25 15:26:54,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:26:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 181 [2022-11-25 15:26:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:54,414 INFO L225 Difference]: With dead ends: 1311 [2022-11-25 15:26:54,414 INFO L226 Difference]: Without dead ends: 741 [2022-11-25 15:26:54,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:26:54,418 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1372 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 4224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:54,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1784 Invalid, 4224 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [656 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 15:26:54,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2022-11-25 15:26:54,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 606. [2022-11-25 15:26:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.4921700223713648) internal successors, (667), 467 states have internal predecessors, (667), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2022-11-25 15:26:54,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 894 transitions. [2022-11-25 15:26:54,505 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 894 transitions. Word has length 181 [2022-11-25 15:26:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:54,506 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 894 transitions. [2022-11-25 15:26:54,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:26:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 894 transitions. [2022-11-25 15:26:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-25 15:26:54,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:54,511 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:54,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:26:54,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash 178906954, now seen corresponding path program 1 times [2022-11-25 15:26:54,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:54,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113638474] [2022-11-25 15:26:54,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:26:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:26:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:26:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:26:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:26:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:26:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:26:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:26:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:26:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 15:26:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 15:26:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 15:26:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 15:26:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 15:26:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 15:26:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:26:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:26:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:54,761 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-25 15:26:54,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:54,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113638474] [2022-11-25 15:26:54,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113638474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:54,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:54,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:26:54,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325176509] [2022-11-25 15:26:54,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:54,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:26:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:54,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:26:54,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:26:54,768 INFO L87 Difference]: Start difference. First operand 606 states and 894 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-25 15:26:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:57,190 INFO L93 Difference]: Finished difference Result 1317 states and 1998 transitions. [2022-11-25 15:26:57,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:26:57,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 165 [2022-11-25 15:26:57,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:57,196 INFO L225 Difference]: With dead ends: 1317 [2022-11-25 15:26:57,196 INFO L226 Difference]: Without dead ends: 742 [2022-11-25 15:26:57,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:26:57,200 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 2100 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 871 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 871 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:57,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2128 Valid, 967 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [871 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 15:26:57,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-11-25 15:26:57,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 607. [2022-11-25 15:26:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.4810690423162582) internal successors, (665), 467 states have internal predecessors, (665), 113 states have call successors, (113), 45 states have call predecessors, (113), 44 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2022-11-25 15:26:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 888 transitions. [2022-11-25 15:26:57,262 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 888 transitions. Word has length 165 [2022-11-25 15:26:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:57,262 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 888 transitions. [2022-11-25 15:26:57,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-25 15:26:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 888 transitions. [2022-11-25 15:26:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-25 15:26:57,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:57,267 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:57,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:26:57,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:57,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2023754000, now seen corresponding path program 1 times [2022-11-25 15:26:57,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:57,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328496996] [2022-11-25 15:26:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:57,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:26:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:26:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:26:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:26:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:26:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:26:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:26:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 15:26:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 15:26:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:26:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 15:26:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:26:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 15:26:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 15:26:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 15:26:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:26:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-25 15:26:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:26:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 15:26:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 15:26:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 15:26:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 15:26:57,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:57,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328496996] [2022-11-25 15:26:57,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328496996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:57,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:57,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:26:57,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930790297] [2022-11-25 15:26:57,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:57,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:26:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:26:57,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:26:57,507 INFO L87 Difference]: Start difference. First operand 607 states and 888 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:26:59,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:59,818 INFO L93 Difference]: Finished difference Result 1310 states and 1972 transitions. [2022-11-25 15:26:59,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:26:59,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 189 [2022-11-25 15:26:59,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:59,823 INFO L225 Difference]: With dead ends: 1310 [2022-11-25 15:26:59,823 INFO L226 Difference]: Without dead ends: 739 [2022-11-25 15:26:59,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:26:59,826 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2050 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:59,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 988 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 15:26:59,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-25 15:26:59,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 605. [2022-11-25 15:26:59,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 449 states have (on average 1.4743875278396437) internal successors, (662), 465 states have internal predecessors, (662), 111 states have call successors, (111), 45 states have call predecessors, (111), 44 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2022-11-25 15:26:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 881 transitions. [2022-11-25 15:26:59,884 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 881 transitions. Word has length 189 [2022-11-25 15:26:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:59,884 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 881 transitions. [2022-11-25 15:26:59,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:26:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 881 transitions. [2022-11-25 15:26:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-25 15:26:59,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:59,889 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:59,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:26:59,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:59,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:59,890 INFO L85 PathProgramCache]: Analyzing trace with hash 430423444, now seen corresponding path program 1 times [2022-11-25 15:26:59,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:59,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088315429] [2022-11-25 15:26:59,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:59,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:26:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:59,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:59,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:26:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:26:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:27:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:27:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:27:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 15:27:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:27:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 15:27:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 15:27:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 15:27:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-25 15:27:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 15:27:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-25 15:27:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-25 15:27:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 15:27:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-25 15:27:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 15:27:00,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:00,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088315429] [2022-11-25 15:27:00,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088315429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:00,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:00,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:27:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829025409] [2022-11-25 15:27:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:00,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:27:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:00,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:27:00,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:27:00,089 INFO L87 Difference]: Start difference. First operand 605 states and 881 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 15:27:02,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:02,402 INFO L93 Difference]: Finished difference Result 1301 states and 1925 transitions. [2022-11-25 15:27:02,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:27:02,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 197 [2022-11-25 15:27:02,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:02,409 INFO L225 Difference]: With dead ends: 1301 [2022-11-25 15:27:02,409 INFO L226 Difference]: Without dead ends: 742 [2022-11-25 15:27:02,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:27:02,416 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 2033 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:02,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 917 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 15:27:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-11-25 15:27:02,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 602. [2022-11-25 15:27:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 449 states have (on average 1.4498886414253898) internal successors, (651), 460 states have internal predecessors, (651), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:27:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 864 transitions. [2022-11-25 15:27:02,516 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 864 transitions. Word has length 197 [2022-11-25 15:27:02,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:02,517 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 864 transitions. [2022-11-25 15:27:02,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 15:27:02,517 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 864 transitions. [2022-11-25 15:27:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-25 15:27:02,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:02,523 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:02,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:27:02,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:02,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:02,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1079378543, now seen corresponding path program 1 times [2022-11-25 15:27:02,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:02,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996661643] [2022-11-25 15:27:02,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:02,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:27:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:27:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 15:27:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 15:27:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:02,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 15:27:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 15:27:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 15:27:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:27:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 15:27:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 15:27:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 15:27:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 15:27:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-25 15:27:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-25 15:27:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-25 15:27:03,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:03,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996661643] [2022-11-25 15:27:03,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996661643] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:27:03,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557979224] [2022-11-25 15:27:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:03,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:03,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:27:03,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:27:03,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:27:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:03,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:27:03,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:27:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-25 15:27:03,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:27:03,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557979224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:03,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:27:03,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-25 15:27:03,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812564105] [2022-11-25 15:27:03,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:03,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:27:03,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:03,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:27:03,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:03,627 INFO L87 Difference]: Start difference. First operand 602 states and 864 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 15:27:03,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:03,762 INFO L93 Difference]: Finished difference Result 939 states and 1329 transitions. [2022-11-25 15:27:03,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:27:03,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 208 [2022-11-25 15:27:03,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:03,767 INFO L225 Difference]: With dead ends: 939 [2022-11-25 15:27:03,767 INFO L226 Difference]: Without dead ends: 605 [2022-11-25 15:27:03,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:03,774 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 1 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1718 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 [2022-11-25 15:27:03,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1718 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:27:03,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-25 15:27:03,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 604. [2022-11-25 15:27:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 451 states have (on average 1.4478935698447895) internal successors, (653), 462 states have internal predecessors, (653), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:27:03,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 866 transitions. [2022-11-25 15:27:03,831 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 866 transitions. Word has length 208 [2022-11-25 15:27:03,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:03,832 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 866 transitions. [2022-11-25 15:27:03,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 15:27:03,833 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 866 transitions. [2022-11-25 15:27:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-25 15:27:03,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:03,837 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:03,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 15:27:04,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:04,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:04,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:04,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1612761736, now seen corresponding path program 1 times [2022-11-25 15:27:04,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:04,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599800896] [2022-11-25 15:27:04,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:04,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:27:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:27:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 15:27:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 15:27:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 15:27:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 15:27:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:27:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 15:27:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 15:27:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-25 15:27:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-25 15:27:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-25 15:27:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 15:27:04,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:04,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599800896] [2022-11-25 15:27:04,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599800896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:27:04,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726467364] [2022-11-25 15:27:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:04,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:27:04,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:27:04,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:27:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:04,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1631 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:27:04,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:27:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-25 15:27:05,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:27:05,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726467364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:05,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:27:05,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-25 15:27:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457924501] [2022-11-25 15:27:05,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:05,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:27:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:27:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:05,004 INFO L87 Difference]: Start difference. First operand 604 states and 866 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 15:27:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:05,086 INFO L93 Difference]: Finished difference Result 1228 states and 1793 transitions. [2022-11-25 15:27:05,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:27:05,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 202 [2022-11-25 15:27:05,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:05,091 INFO L225 Difference]: With dead ends: 1228 [2022-11-25 15:27:05,092 INFO L226 Difference]: Without dead ends: 702 [2022-11-25 15:27:05,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:05,095 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 165 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1699 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 [2022-11-25 15:27:05,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1699 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:27:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-11-25 15:27:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 694. [2022-11-25 15:27:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.462998102466793) internal successors, (771), 538 states have internal predecessors, (771), 122 states have call successors, (122), 45 states have call predecessors, (122), 44 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2022-11-25 15:27:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1012 transitions. [2022-11-25 15:27:05,160 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1012 transitions. Word has length 202 [2022-11-25 15:27:05,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:05,161 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 1012 transitions. [2022-11-25 15:27:05,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 15:27:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1012 transitions. [2022-11-25 15:27:05,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-25 15:27:05,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:05,166 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:05,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:27:05,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 15:27:05,374 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:05,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:05,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1006413150, now seen corresponding path program 1 times [2022-11-25 15:27:05,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:05,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98479044] [2022-11-25 15:27:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:05,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:27:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:27:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 15:27:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-25 15:27:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 15:27:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 15:27:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 15:27:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 15:27:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-25 15:27:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-25 15:27:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-25 15:27:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 15:27:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:05,780 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 15:27:05,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:05,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98479044] [2022-11-25 15:27:05,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98479044] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:27:05,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063318920] [2022-11-25 15:27:05,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:05,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:05,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:27:05,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:27:05,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:27:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:06,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:27:06,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:27:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:06,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:27:06,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063318920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:06,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:27:06,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-25 15:27:06,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159696355] [2022-11-25 15:27:06,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:06,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:27:06,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:27:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:06,451 INFO L87 Difference]: Start difference. First operand 694 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-25 15:27:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:06,665 INFO L93 Difference]: Finished difference Result 1668 states and 2429 transitions. [2022-11-25 15:27:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:27:06,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 203 [2022-11-25 15:27:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:06,673 INFO L225 Difference]: With dead ends: 1668 [2022-11-25 15:27:06,673 INFO L226 Difference]: Without dead ends: 1342 [2022-11-25 15:27:06,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:06,689 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 723 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:06,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1800 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:27:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-11-25 15:27:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1338. [2022-11-25 15:27:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1025 states have (on average 1.4702439024390244) internal successors, (1507), 1043 states have internal predecessors, (1507), 226 states have call successors, (226), 87 states have call predecessors, (226), 86 states have return successors, (231), 220 states have call predecessors, (231), 222 states have call successors, (231) [2022-11-25 15:27:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1964 transitions. [2022-11-25 15:27:06,814 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1964 transitions. Word has length 203 [2022-11-25 15:27:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:06,815 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1964 transitions. [2022-11-25 15:27:06,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-25 15:27:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1964 transitions. [2022-11-25 15:27:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-25 15:27:06,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:06,822 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:06,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:27:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 15:27:07,031 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1967193169, now seen corresponding path program 1 times [2022-11-25 15:27:07,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:07,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455778208] [2022-11-25 15:27:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:27:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:27:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 15:27:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-25 15:27:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 15:27:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 15:27:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 15:27:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 15:27:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-25 15:27:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-25 15:27:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-25 15:27:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-25 15:27:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:07,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455778208] [2022-11-25 15:27:07,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455778208] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:27:07,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327276614] [2022-11-25 15:27:07,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:07,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:07,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:27:07,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:27:07,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:27:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:07,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:27:07,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:27:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-25 15:27:08,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:27:08,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327276614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:08,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:27:08,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2022-11-25 15:27:08,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955698818] [2022-11-25 15:27:08,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:08,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:27:08,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:08,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:27:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:27:08,045 INFO L87 Difference]: Start difference. First operand 1338 states and 1964 transitions. Second operand has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:08,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:08,407 INFO L93 Difference]: Finished difference Result 2600 states and 3840 transitions. [2022-11-25 15:27:08,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:27:08,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 196 [2022-11-25 15:27:08,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:08,417 INFO L225 Difference]: With dead ends: 2600 [2022-11-25 15:27:08,417 INFO L226 Difference]: Without dead ends: 1342 [2022-11-25 15:27:08,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-11-25 15:27:08,425 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 363 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5534 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:08,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 5534 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:27:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-11-25 15:27:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2022-11-25 15:27:08,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1027 states have (on average 1.4693281402142162) internal successors, (1509), 1047 states have internal predecessors, (1509), 226 states have call successors, (226), 87 states have call predecessors, (226), 88 states have return successors, (235), 220 states have call predecessors, (235), 222 states have call successors, (235) [2022-11-25 15:27:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1970 transitions. [2022-11-25 15:27:08,642 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1970 transitions. Word has length 196 [2022-11-25 15:27:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:08,643 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1970 transitions. [2022-11-25 15:27:08,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1970 transitions. [2022-11-25 15:27:08,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-25 15:27:08,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:08,650 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:08,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:27:08,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:08,859 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:08,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:08,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2122072, now seen corresponding path program 1 times [2022-11-25 15:27:08,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:08,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971620311] [2022-11-25 15:27:08,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:08,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 15:27:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:27:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 15:27:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 15:27:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 15:27:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-25 15:27:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-25 15:27:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-25 15:27:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 15:27:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-25 15:27:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 15:27:09,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:09,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971620311] [2022-11-25 15:27:09,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971620311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:27:09,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995505094] [2022-11-25 15:27:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:09,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:09,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:27:09,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:27:09,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:27:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:09,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:27:09,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:27:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-25 15:27:09,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:27:09,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995505094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:09,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:27:09,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2022-11-25 15:27:09,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671652896] [2022-11-25 15:27:09,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:09,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:27:09,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:09,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:27:09,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:27:09,804 INFO L87 Difference]: Start difference. First operand 1342 states and 1970 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-25 15:27:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:10,090 INFO L93 Difference]: Finished difference Result 2602 states and 3848 transitions. [2022-11-25 15:27:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:27:10,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 197 [2022-11-25 15:27:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:10,098 INFO L225 Difference]: With dead ends: 2602 [2022-11-25 15:27:10,098 INFO L226 Difference]: Without dead ends: 1346 [2022-11-25 15:27:10,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:27:10,104 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 361 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:10,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 3840 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:27:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-11-25 15:27:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2022-11-25 15:27:10,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1029 states have (on average 1.468415937803693) internal successors, (1511), 1051 states have internal predecessors, (1511), 226 states have call successors, (226), 87 states have call predecessors, (226), 90 states have return successors, (245), 220 states have call predecessors, (245), 222 states have call successors, (245) [2022-11-25 15:27:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1982 transitions. [2022-11-25 15:27:10,237 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1982 transitions. Word has length 197 [2022-11-25 15:27:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:10,237 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1982 transitions. [2022-11-25 15:27:10,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-25 15:27:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1982 transitions. [2022-11-25 15:27:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-25 15:27:10,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:10,244 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:10,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:27:10,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 15:27:10,452 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:10,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:10,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1089287723, now seen corresponding path program 1 times [2022-11-25 15:27:10,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:10,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303655522] [2022-11-25 15:27:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:10,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:27:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 15:27:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 15:27:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 15:27:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-25 15:27:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-25 15:27:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 15:27:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 15:27:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-25 15:27:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-25 15:27:10,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:10,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303655522] [2022-11-25 15:27:10,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303655522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:10,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:10,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:27:10,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32305907] [2022-11-25 15:27:10,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:10,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:27:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:10,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:27:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:27:10,886 INFO L87 Difference]: Start difference. First operand 1346 states and 1982 transitions. Second operand has 12 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:15,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:15,650 INFO L93 Difference]: Finished difference Result 2836 states and 4309 transitions. [2022-11-25 15:27:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 15:27:15,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 198 [2022-11-25 15:27:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:15,661 INFO L225 Difference]: With dead ends: 2836 [2022-11-25 15:27:15,661 INFO L226 Difference]: Without dead ends: 1604 [2022-11-25 15:27:15,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2022-11-25 15:27:15,666 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 2214 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5586 mSolverCounterSat, 924 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 6510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 5586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:15,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 2219 Invalid, 6510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [924 Valid, 5586 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 15:27:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-11-25 15:27:15,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1346. [2022-11-25 15:27:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1029 states have (on average 1.468415937803693) internal successors, (1511), 1051 states have internal predecessors, (1511), 226 states have call successors, (226), 87 states have call predecessors, (226), 90 states have return successors, (243), 220 states have call predecessors, (243), 222 states have call successors, (243) [2022-11-25 15:27:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1980 transitions. [2022-11-25 15:27:15,828 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1980 transitions. Word has length 198 [2022-11-25 15:27:15,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:15,829 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1980 transitions. [2022-11-25 15:27:15,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1980 transitions. [2022-11-25 15:27:15,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-25 15:27:15,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:15,836 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:15,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 15:27:15,836 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:15,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1061799578, now seen corresponding path program 2 times [2022-11-25 15:27:15,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:15,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576708873] [2022-11-25 15:27:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 15:27:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:27:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 15:27:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 15:27:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-25 15:27:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 15:27:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-25 15:27:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-25 15:27:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-25 15:27:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-25 15:27:16,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:16,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576708873] [2022-11-25 15:27:16,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576708873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:16,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:16,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:27:16,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080870340] [2022-11-25 15:27:16,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:16,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:27:16,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:16,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:27:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:27:16,292 INFO L87 Difference]: Start difference. First operand 1346 states and 1980 transitions. Second operand has 12 states, 10 states have (on average 11.7) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:20,731 INFO L93 Difference]: Finished difference Result 2840 states and 4315 transitions. [2022-11-25 15:27:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 15:27:20,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.7) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 199 [2022-11-25 15:27:20,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:20,745 INFO L225 Difference]: With dead ends: 2840 [2022-11-25 15:27:20,745 INFO L226 Difference]: Without dead ends: 1608 [2022-11-25 15:27:20,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2022-11-25 15:27:20,750 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 2210 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5603 mSolverCounterSat, 927 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 6530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 5603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:20,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 2219 Invalid, 6530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [927 Valid, 5603 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 15:27:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2022-11-25 15:27:20,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1350. [2022-11-25 15:27:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1031 states have (on average 1.4675072744907856) internal successors, (1513), 1055 states have internal predecessors, (1513), 226 states have call successors, (226), 87 states have call predecessors, (226), 92 states have return successors, (247), 220 states have call predecessors, (247), 222 states have call successors, (247) [2022-11-25 15:27:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1986 transitions. [2022-11-25 15:27:20,916 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1986 transitions. Word has length 199 [2022-11-25 15:27:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:20,917 INFO L495 AbstractCegarLoop]: Abstraction has 1350 states and 1986 transitions. [2022-11-25 15:27:20,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.7) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1986 transitions. [2022-11-25 15:27:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-25 15:27:20,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:20,924 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:20,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 15:27:20,925 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:20,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376112, now seen corresponding path program 1 times [2022-11-25 15:27:20,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:20,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005123903] [2022-11-25 15:27:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:20,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 15:27:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 15:27:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:27:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 15:27:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 15:27:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 15:27:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-25 15:27:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-25 15:27:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 15:27:21,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:21,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005123903] [2022-11-25 15:27:21,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005123903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:21,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:21,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 15:27:21,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537192532] [2022-11-25 15:27:21,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:21,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 15:27:21,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:21,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 15:27:21,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:21,461 INFO L87 Difference]: Start difference. First operand 1350 states and 1986 transitions. Second operand has 13 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:26,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:26,313 INFO L93 Difference]: Finished difference Result 3280 states and 5053 transitions. [2022-11-25 15:27:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 15:27:26,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 200 [2022-11-25 15:27:26,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:26,327 INFO L225 Difference]: With dead ends: 3280 [2022-11-25 15:27:26,327 INFO L226 Difference]: Without dead ends: 2054 [2022-11-25 15:27:26,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-11-25 15:27:26,332 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2041 mSDsluCounter, 4372 mSDsCounter, 0 mSdLazyCounter, 6695 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 4860 SdHoareTripleChecker+Invalid, 7574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 6695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:26,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 4860 Invalid, 7574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [879 Valid, 6695 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 15:27:26,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2022-11-25 15:27:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 1360. [2022-11-25 15:27:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1035 states have (on average 1.4657004830917875) internal successors, (1517), 1061 states have internal predecessors, (1517), 228 states have call successors, (228), 87 states have call predecessors, (228), 96 states have return successors, (257), 224 states have call predecessors, (257), 224 states have call successors, (257) [2022-11-25 15:27:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2002 transitions. [2022-11-25 15:27:26,505 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2002 transitions. Word has length 200 [2022-11-25 15:27:26,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:26,506 INFO L495 AbstractCegarLoop]: Abstraction has 1360 states and 2002 transitions. [2022-11-25 15:27:26,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:26,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2002 transitions. [2022-11-25 15:27:26,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-25 15:27:26,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:26,512 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:26,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 15:27:26,513 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:26,513 INFO L85 PathProgramCache]: Analyzing trace with hash -10879346, now seen corresponding path program 1 times [2022-11-25 15:27:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:26,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345312378] [2022-11-25 15:27:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:26,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 15:27:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 15:27:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:27:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 15:27:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 15:27:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 15:27:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-25 15:27:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-25 15:27:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:26,944 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-25 15:27:26,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:26,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345312378] [2022-11-25 15:27:26,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345312378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:26,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:26,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:27:26,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007105249] [2022-11-25 15:27:26,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:26,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:27:26,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:27:26,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:27:26,949 INFO L87 Difference]: Start difference. First operand 1360 states and 2002 transitions. Second operand has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:31,488 INFO L93 Difference]: Finished difference Result 2836 states and 4307 transitions. [2022-11-25 15:27:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 15:27:31,489 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 200 [2022-11-25 15:27:31,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:31,499 INFO L225 Difference]: With dead ends: 2836 [2022-11-25 15:27:31,499 INFO L226 Difference]: Without dead ends: 1604 [2022-11-25 15:27:31,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2022-11-25 15:27:31,503 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 2179 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5656 mSolverCounterSat, 922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 6578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 922 IncrementalHoareTripleChecker+Valid, 5656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:31,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2179 Valid, 2218 Invalid, 6578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [922 Valid, 5656 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 15:27:31,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-11-25 15:27:31,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1350. [2022-11-25 15:27:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1031 states have (on average 1.4675072744907856) internal successors, (1513), 1055 states have internal predecessors, (1513), 226 states have call successors, (226), 87 states have call predecessors, (226), 92 states have return successors, (245), 220 states have call predecessors, (245), 222 states have call successors, (245) [2022-11-25 15:27:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1984 transitions. [2022-11-25 15:27:31,686 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1984 transitions. Word has length 200 [2022-11-25 15:27:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:31,687 INFO L495 AbstractCegarLoop]: Abstraction has 1350 states and 1984 transitions. [2022-11-25 15:27:31,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.8) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:31,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1984 transitions. [2022-11-25 15:27:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-25 15:27:31,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:31,694 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:31,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 15:27:31,695 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1677483331, now seen corresponding path program 2 times [2022-11-25 15:27:31,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:31,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72867159] [2022-11-25 15:27:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 15:27:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 15:27:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 15:27:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 15:27:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 15:27:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 15:27:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-25 15:27:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-25 15:27:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 15:27:32,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:32,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72867159] [2022-11-25 15:27:32,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72867159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:32,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:32,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 15:27:32,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179775860] [2022-11-25 15:27:32,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:32,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 15:27:32,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:32,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 15:27:32,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:32,158 INFO L87 Difference]: Start difference. First operand 1350 states and 1984 transitions. Second operand has 13 states, 11 states have (on average 11.090909090909092) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:37,074 INFO L93 Difference]: Finished difference Result 2834 states and 4309 transitions. [2022-11-25 15:27:37,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 15:27:37,075 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 11.090909090909092) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 201 [2022-11-25 15:27:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:37,084 INFO L225 Difference]: With dead ends: 2834 [2022-11-25 15:27:37,084 INFO L226 Difference]: Without dead ends: 1608 [2022-11-25 15:27:37,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-11-25 15:27:37,089 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1999 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 6716 mSolverCounterSat, 859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 7575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 859 IncrementalHoareTripleChecker+Valid, 6716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:37,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 2636 Invalid, 7575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [859 Valid, 6716 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 15:27:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2022-11-25 15:27:37,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1354. [2022-11-25 15:27:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1033 states have (on average 1.4666021297192642) internal successors, (1515), 1059 states have internal predecessors, (1515), 226 states have call successors, (226), 87 states have call predecessors, (226), 94 states have return successors, (255), 220 states have call predecessors, (255), 222 states have call successors, (255) [2022-11-25 15:27:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1996 transitions. [2022-11-25 15:27:37,259 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1996 transitions. Word has length 201 [2022-11-25 15:27:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:37,260 INFO L495 AbstractCegarLoop]: Abstraction has 1354 states and 1996 transitions. [2022-11-25 15:27:37,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 11.090909090909092) internal successors, (122), 8 states have internal predecessors, (122), 4 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 15:27:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1996 transitions. [2022-11-25 15:27:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-25 15:27:37,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:37,266 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:37,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 15:27:37,267 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1038796107, now seen corresponding path program 1 times [2022-11-25 15:27:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:37,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644519047] [2022-11-25 15:27:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:37,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 15:27:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-25 15:27:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 15:27:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 15:27:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 15:27:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-25 15:27:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-25 15:27:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-25 15:27:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:37,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644519047] [2022-11-25 15:27:37,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644519047] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:27:37,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962896678] [2022-11-25 15:27:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:37,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:27:37,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:27:37,504 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:27:37,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:27:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:37,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:27:37,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:27:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:37,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:27:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:38,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962896678] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:27:38,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:27:38,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-25 15:27:38,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426618447] [2022-11-25 15:27:38,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:27:38,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 15:27:38,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:38,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 15:27:38,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:27:38,125 INFO L87 Difference]: Start difference. First operand 1354 states and 1996 transitions. Second operand has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (52), 6 states have call predecessors, (52), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 15:27:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:42,041 INFO L93 Difference]: Finished difference Result 3382 states and 5287 transitions. [2022-11-25 15:27:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:27:42,042 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (52), 6 states have call predecessors, (52), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 202 [2022-11-25 15:27:42,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:42,057 INFO L225 Difference]: With dead ends: 3382 [2022-11-25 15:27:42,057 INFO L226 Difference]: Without dead ends: 2734 [2022-11-25 15:27:42,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:27:42,061 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 2446 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 3945 mSolverCounterSat, 1031 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 4976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1031 IncrementalHoareTripleChecker+Valid, 3945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:42,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 2293 Invalid, 4976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1031 Valid, 3945 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 15:27:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2022-11-25 15:27:42,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2432. [2022-11-25 15:27:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1953 states have (on average 1.517153097798259) internal successors, (2963), 1979 states have internal predecessors, (2963), 384 states have call successors, (384), 87 states have call predecessors, (384), 94 states have return successors, (433), 378 states have call predecessors, (433), 380 states have call successors, (433) [2022-11-25 15:27:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3780 transitions. [2022-11-25 15:27:42,314 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3780 transitions. Word has length 202 [2022-11-25 15:27:42,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:42,315 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3780 transitions. [2022-11-25 15:27:42,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (52), 6 states have call predecessors, (52), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 15:27:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3780 transitions. [2022-11-25 15:27:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-25 15:27:42,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:42,327 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:42,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:27:42,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e67fa3e1-dd8b-4d1f-90ea-2294f7aa9121/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 15:27:42,536 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash 594271575, now seen corresponding path program 1 times [2022-11-25 15:27:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:42,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077545428] [2022-11-25 15:27:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 15:27:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 15:27:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-25 15:27:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 15:27:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-25 15:27:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 15:27:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-25 15:27:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-25 15:27:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:42,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:42,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077545428] [2022-11-25 15:27:42,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077545428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:42,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:42,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:27:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62844057] [2022-11-25 15:27:42,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:42,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:27:42,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:42,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:27:42,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:27:42,730 INFO L87 Difference]: Start difference. First operand 2432 states and 3780 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:45,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:45,809 INFO L93 Difference]: Finished difference Result 5896 states and 9447 transitions. [2022-11-25 15:27:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:27:45,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 206 [2022-11-25 15:27:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:45,828 INFO L225 Difference]: With dead ends: 5896 [2022-11-25 15:27:45,829 INFO L226 Difference]: Without dead ends: 3704 [2022-11-25 15:27:45,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:45,837 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1984 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 947 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:45,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 1396 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [947 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:27:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2022-11-25 15:27:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3434. [2022-11-25 15:27:46,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 2797 states have (on average 1.5284233106900251) internal successors, (4275), 2823 states have internal predecessors, (4275), 542 states have call successors, (542), 87 states have call predecessors, (542), 94 states have return successors, (611), 536 states have call predecessors, (611), 538 states have call successors, (611) [2022-11-25 15:27:46,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 5428 transitions. [2022-11-25 15:27:46,300 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 5428 transitions. Word has length 206 [2022-11-25 15:27:46,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:46,300 INFO L495 AbstractCegarLoop]: Abstraction has 3434 states and 5428 transitions. [2022-11-25 15:27:46,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 5428 transitions. [2022-11-25 15:27:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-25 15:27:46,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:46,317 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:46,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 15:27:46,318 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash -358297493, now seen corresponding path program 1 times [2022-11-25 15:27:46,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229841300] [2022-11-25 15:27:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:46,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-25 15:27:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 15:27:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:27:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 15:27:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 15:27:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-25 15:27:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-25 15:27:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-25 15:27:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:46,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:46,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229841300] [2022-11-25 15:27:46,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229841300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:46,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:46,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:27:46,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295994669] [2022-11-25 15:27:46,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:46,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:27:46,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:46,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:27:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:27:46,535 INFO L87 Difference]: Start difference. First operand 3434 states and 5428 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:49,577 INFO L93 Difference]: Finished difference Result 8390 states and 13561 transitions. [2022-11-25 15:27:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:27:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 207 [2022-11-25 15:27:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:49,605 INFO L225 Difference]: With dead ends: 8390 [2022-11-25 15:27:49,606 INFO L226 Difference]: Without dead ends: 5322 [2022-11-25 15:27:49,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:49,618 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1982 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:49,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 1377 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [946 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 15:27:49,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2022-11-25 15:27:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 5052. [2022-11-25 15:27:50,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5052 states, 4177 states have (on average 1.5405793631793152) internal successors, (6435), 4203 states have internal predecessors, (6435), 780 states have call successors, (780), 87 states have call predecessors, (780), 94 states have return successors, (849), 774 states have call predecessors, (849), 776 states have call successors, (849) [2022-11-25 15:27:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5052 states to 5052 states and 8064 transitions. [2022-11-25 15:27:50,237 INFO L78 Accepts]: Start accepts. Automaton has 5052 states and 8064 transitions. Word has length 207 [2022-11-25 15:27:50,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:50,239 INFO L495 AbstractCegarLoop]: Abstraction has 5052 states and 8064 transitions. [2022-11-25 15:27:50,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5052 states and 8064 transitions. [2022-11-25 15:27:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-25 15:27:50,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:50,263 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:50,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 15:27:50,263 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash -425384560, now seen corresponding path program 1 times [2022-11-25 15:27:50,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:50,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948426243] [2022-11-25 15:27:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:50,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 15:27:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 15:27:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-25 15:27:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 15:27:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 15:27:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 15:27:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-25 15:27:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-25 15:27:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:50,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:50,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948426243] [2022-11-25 15:27:50,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948426243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:50,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:50,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:27:50,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855106418] [2022-11-25 15:27:50,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:50,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:27:50,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:27:50,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:27:50,474 INFO L87 Difference]: Start difference. First operand 5052 states and 8064 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:53,826 INFO L93 Difference]: Finished difference Result 12188 states and 19875 transitions. [2022-11-25 15:27:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:27:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2022-11-25 15:27:53,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:53,858 INFO L225 Difference]: With dead ends: 12188 [2022-11-25 15:27:53,859 INFO L226 Difference]: Without dead ends: 7816 [2022-11-25 15:27:53,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:53,873 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1998 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:53,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 1377 Invalid, 2903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 15:27:53,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7816 states. [2022-11-25 15:27:54,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7816 to 7546. [2022-11-25 15:27:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7546 states, 6347 states have (on average 1.55081140696392) internal successors, (9843), 6373 states have internal predecessors, (9843), 1104 states have call successors, (1104), 87 states have call predecessors, (1104), 94 states have return successors, (1205), 1098 states have call predecessors, (1205), 1100 states have call successors, (1205) [2022-11-25 15:27:54,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7546 states to 7546 states and 12152 transitions. [2022-11-25 15:27:54,732 INFO L78 Accepts]: Start accepts. Automaton has 7546 states and 12152 transitions. Word has length 208 [2022-11-25 15:27:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:54,733 INFO L495 AbstractCegarLoop]: Abstraction has 7546 states and 12152 transitions. [2022-11-25 15:27:54,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 7546 states and 12152 transitions. [2022-11-25 15:27:54,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-25 15:27:54,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:54,770 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:54,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 15:27:54,770 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:54,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:54,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2139031459, now seen corresponding path program 1 times [2022-11-25 15:27:54,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:54,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655513049] [2022-11-25 15:27:54,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:54,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:27:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:27:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:27:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:27:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:27:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:27:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:27:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:27:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:27:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:27:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:27:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:27:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:27:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:27:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:27:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-25 15:27:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 15:27:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-25 15:27:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-25 15:27:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-25 15:27:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 15:27:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 15:27:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-25 15:27:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:27:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:27:54,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:27:54,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655513049] [2022-11-25 15:27:54,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655513049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:27:54,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:27:54,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:27:54,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510727150] [2022-11-25 15:27:54,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:27:54,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:27:54,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:27:54,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:27:54,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:27:54,938 INFO L87 Difference]: Start difference. First operand 7546 states and 12152 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:27:58,649 INFO L93 Difference]: Finished difference Result 18192 states and 29893 transitions. [2022-11-25 15:27:58,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:27:58,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 209 [2022-11-25 15:27:58,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:27:58,693 INFO L225 Difference]: With dead ends: 18192 [2022-11-25 15:27:58,693 INFO L226 Difference]: Without dead ends: 11844 [2022-11-25 15:27:58,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:27:58,714 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 2003 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1929 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:27:58,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 1375 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1929 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 15:27:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11844 states. [2022-11-25 15:27:59,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11844 to 11574. [2022-11-25 15:27:59,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11574 states, 9885 states have (on average 1.5594334850784015) internal successors, (15415), 9911 states have internal predecessors, (15415), 1594 states have call successors, (1594), 87 states have call predecessors, (1594), 94 states have return successors, (1747), 1588 states have call predecessors, (1747), 1590 states have call successors, (1747) [2022-11-25 15:27:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11574 states to 11574 states and 18756 transitions. [2022-11-25 15:27:59,892 INFO L78 Accepts]: Start accepts. Automaton has 11574 states and 18756 transitions. Word has length 209 [2022-11-25 15:27:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:27:59,892 INFO L495 AbstractCegarLoop]: Abstraction has 11574 states and 18756 transitions. [2022-11-25 15:27:59,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:27:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 11574 states and 18756 transitions. [2022-11-25 15:27:59,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-25 15:27:59,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:27:59,926 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:27:59,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 15:27:59,927 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:27:59,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:27:59,927 INFO L85 PathProgramCache]: Analyzing trace with hash 432958171, now seen corresponding path program 1 times [2022-11-25 15:27:59,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:27:59,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296972417] [2022-11-25 15:27:59,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:27:59,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:27:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:28:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:28:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:28:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:28:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:28:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:28:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:28:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:28:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:28:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:28:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:28:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:28:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:28:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 15:28:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:28:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-25 15:28:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-25 15:28:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-25 15:28:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-25 15:28:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-25 15:28:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-25 15:28:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:00,103 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:28:00,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:00,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296972417] [2022-11-25 15:28:00,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296972417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:00,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:00,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:28:00,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783991687] [2022-11-25 15:28:00,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:00,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:28:00,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:00,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:28:00,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:00,106 INFO L87 Difference]: Start difference. First operand 11574 states and 18756 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:28:04,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:04,318 INFO L93 Difference]: Finished difference Result 28178 states and 46489 transitions. [2022-11-25 15:28:04,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:28:04,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 210 [2022-11-25 15:28:04,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:04,412 INFO L225 Difference]: With dead ends: 28178 [2022-11-25 15:28:04,412 INFO L226 Difference]: Without dead ends: 18594 [2022-11-25 15:28:04,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:28:04,441 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1973 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:04,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 1406 Invalid, 2929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [925 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:28:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18594 states. [2022-11-25 15:28:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18594 to 18324. [2022-11-25 15:28:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18324 states, 15649 states have (on average 1.556840692696019) internal successors, (24363), 15675 states have internal predecessors, (24363), 2580 states have call successors, (2580), 87 states have call predecessors, (2580), 94 states have return successors, (2821), 2574 states have call predecessors, (2821), 2576 states have call successors, (2821) [2022-11-25 15:28:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18324 states to 18324 states and 29764 transitions. [2022-11-25 15:28:06,269 INFO L78 Accepts]: Start accepts. Automaton has 18324 states and 29764 transitions. Word has length 210 [2022-11-25 15:28:06,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:06,270 INFO L495 AbstractCegarLoop]: Abstraction has 18324 states and 29764 transitions. [2022-11-25 15:28:06,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:28:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand 18324 states and 29764 transitions. [2022-11-25 15:28:06,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-25 15:28:06,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:06,317 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:06,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 15:28:06,317 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:06,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1179852200, now seen corresponding path program 1 times [2022-11-25 15:28:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:06,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550961255] [2022-11-25 15:28:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:06,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:28:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:28:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:28:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:28:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:28:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:28:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:28:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:28:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:28:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:28:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:28:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:28:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:28:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 15:28:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 15:28:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-25 15:28:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 15:28:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 15:28:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-25 15:28:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-25 15:28:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-25 15:28:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:28:06,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:06,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550961255] [2022-11-25 15:28:06,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550961255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:06,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:06,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:28:06,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403288771] [2022-11-25 15:28:06,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:28:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:06,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:28:06,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:06,622 INFO L87 Difference]: Start difference. First operand 18324 states and 29764 transitions. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:28:11,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:11,757 INFO L93 Difference]: Finished difference Result 46084 states and 76241 transitions. [2022-11-25 15:28:11,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:28:11,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 211 [2022-11-25 15:28:11,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:11,881 INFO L225 Difference]: With dead ends: 46084 [2022-11-25 15:28:11,882 INFO L226 Difference]: Without dead ends: 30742 [2022-11-25 15:28:11,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:28:11,922 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1977 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:11,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1378 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:28:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30742 states. [2022-11-25 15:28:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30742 to 30472. [2022-11-25 15:28:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30472 states, 26153 states have (on average 1.5626123198103468) internal successors, (40867), 26179 states have internal predecessors, (40867), 4224 states have call successors, (4224), 87 states have call predecessors, (4224), 94 states have return successors, (4621), 4218 states have call predecessors, (4621), 4220 states have call successors, (4621) [2022-11-25 15:28:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30472 states to 30472 states and 49712 transitions. [2022-11-25 15:28:15,217 INFO L78 Accepts]: Start accepts. Automaton has 30472 states and 49712 transitions. Word has length 211 [2022-11-25 15:28:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:15,217 INFO L495 AbstractCegarLoop]: Abstraction has 30472 states and 49712 transitions. [2022-11-25 15:28:15,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:28:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 30472 states and 49712 transitions. [2022-11-25 15:28:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-25 15:28:15,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:15,270 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:15,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 15:28:15,270 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:15,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:15,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1594227532, now seen corresponding path program 1 times [2022-11-25 15:28:15,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:15,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865053752] [2022-11-25 15:28:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:15,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:28:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:28:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:28:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:28:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:28:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:28:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:28:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:28:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:28:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:28:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:28:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:28:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:28:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 15:28:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 15:28:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 15:28:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-25 15:28:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-25 15:28:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-25 15:28:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-25 15:28:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-25 15:28:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:28:15,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:15,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865053752] [2022-11-25 15:28:15,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865053752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:15,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:15,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:28:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987391422] [2022-11-25 15:28:15,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:15,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:28:15,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:15,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:28:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:15,434 INFO L87 Difference]: Start difference. First operand 30472 states and 49712 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:28:21,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:21,937 INFO L93 Difference]: Finished difference Result 73702 states and 121009 transitions. [2022-11-25 15:28:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:28:21,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2022-11-25 15:28:21,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:22,087 INFO L225 Difference]: With dead ends: 73702 [2022-11-25 15:28:22,088 INFO L226 Difference]: Without dead ends: 48480 [2022-11-25 15:28:22,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:28:22,138 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1965 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:22,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 1431 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:28:22,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48480 states. [2022-11-25 15:28:26,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48480 to 48210. [2022-11-25 15:28:26,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48210 states, 41485 states have (on average 1.5355670724358201) internal successors, (63703), 41511 states have internal predecessors, (63703), 6630 states have call successors, (6630), 87 states have call predecessors, (6630), 94 states have return successors, (7315), 6624 states have call predecessors, (7315), 6626 states have call successors, (7315) [2022-11-25 15:28:27,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48210 states to 48210 states and 77648 transitions. [2022-11-25 15:28:27,034 INFO L78 Accepts]: Start accepts. Automaton has 48210 states and 77648 transitions. Word has length 212 [2022-11-25 15:28:27,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:28:27,035 INFO L495 AbstractCegarLoop]: Abstraction has 48210 states and 77648 transitions. [2022-11-25 15:28:27,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:28:27,035 INFO L276 IsEmpty]: Start isEmpty. Operand 48210 states and 77648 transitions. [2022-11-25 15:28:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-25 15:28:27,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:28:27,103 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:28:27,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 15:28:27,104 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:28:27,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:28:27,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1967246448, now seen corresponding path program 1 times [2022-11-25 15:28:27,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:28:27,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377452154] [2022-11-25 15:28:27,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:28:27,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:28:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:28:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:28:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:28:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 15:28:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:28:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:28:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 15:28:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:28:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:28:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:28:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:28:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 15:28:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:28:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:28:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:28:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 15:28:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 15:28:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:28:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 15:28:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 15:28:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-25 15:28:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-25 15:28:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-25 15:28:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:28:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 15:28:27,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:28:27,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377452154] [2022-11-25 15:28:27,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377452154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:28:27,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:28:27,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:28:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500638848] [2022-11-25 15:28:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:28:27,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:28:27,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:28:27,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:28:27,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:28:27,455 INFO L87 Difference]: Start difference. First operand 48210 states and 77648 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 15:28:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:28:36,545 INFO L93 Difference]: Finished difference Result 127408 states and 208385 transitions. [2022-11-25 15:28:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:28:36,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 213 [2022-11-25 15:28:36,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:28:36,938 INFO L225 Difference]: With dead ends: 127408 [2022-11-25 15:28:36,938 INFO L226 Difference]: Without dead ends: 86072 [2022-11-25 15:28:37,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:28:37,063 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1968 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 940 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 2897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 940 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:28:37,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1986 Valid, 1380 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [940 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 15:28:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86072 states.