./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 10:56:45,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:56:45,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:56:45,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:56:45,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:56:45,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:56:45,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:56:45,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:56:45,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:56:45,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:56:45,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:56:45,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:56:45,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:56:45,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:56:45,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:56:45,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:56:45,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:56:45,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:56:45,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:56:45,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:56:45,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:56:45,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:56:45,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:56:45,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:56:45,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:56:45,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:56:45,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:56:45,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:56:45,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:56:45,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:56:45,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:56:45,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:56:45,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:56:45,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:56:45,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:56:45,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:56:45,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:56:45,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:56:45,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:56:45,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:56:45,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:56:45,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 10:56:45,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:56:45,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:56:45,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:56:45,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:56:45,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:56:45,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:56:45,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:56:45,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:56:45,483 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:56:45,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:56:45,485 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:56:45,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:56:45,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:56:45,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:56:45,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:56:45,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:56:45,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:56:45,486 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:56:45,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:56:45,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:56:45,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:56:45,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:56:45,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:56:45,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:56:45,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:56:45,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:56:45,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:56:45,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:56:45,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:56:45,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:56:45,490 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:56:45,490 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:56:45,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:56:45,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f422b02f04909f595cd81c18f65f163bde7189dd9d2c25d22c48d8d4d89787b5 [2022-11-16 10:56:45,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:56:45,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:56:45,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:56:45,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:56:45,769 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:56:45,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2022-11-16 10:56:45,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/data/d19ee6e84/5495fa6cca7547f6a48e82261963de62/FLAGad2dca3d8 [2022-11-16 10:56:46,444 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:56:46,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c [2022-11-16 10:56:46,468 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/data/d19ee6e84/5495fa6cca7547f6a48e82261963de62/FLAGad2dca3d8 [2022-11-16 10:56:46,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/data/d19ee6e84/5495fa6cca7547f6a48e82261963de62 [2022-11-16 10:56:46,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:56:46,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:56:46,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:56:46,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:56:46,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:56:46,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:56:46" (1/1) ... [2022-11-16 10:56:46,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1208d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:46, skipping insertion in model container [2022-11-16 10:56:46,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:56:46" (1/1) ... [2022-11-16 10:56:46,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:56:46,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:56:47,293 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2022-11-16 10:56:47,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:56:47,479 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:56:47,552 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/sv-benchmarks/c/product-lines/email_spec11_product36.cil.c[27504,27517] [2022-11-16 10:56:47,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:56:47,645 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:56:47,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47 WrapperNode [2022-11-16 10:56:47,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:56:47,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:56:47,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:56:47,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:56:47,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,733 INFO L138 Inliner]: procedures = 113, calls = 154, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 698 [2022-11-16 10:56:47,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:56:47,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:56:47,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:56:47,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:56:47,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:56:47,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:56:47,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:56:47,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:56:47,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (1/1) ... [2022-11-16 10:56:47,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:56:47,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:47,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:56:47,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:56:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-16 10:56:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-16 10:56:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-16 10:56:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-16 10:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 10:56:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 10:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-16 10:56:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-16 10:56:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 10:56:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 10:56:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-16 10:56:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-16 10:56:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 10:56:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-16 10:56:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-16 10:56:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-16 10:56:47,918 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-16 10:56:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 10:56:47,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 10:56:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:56:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-16 10:56:47,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-16 10:56:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 10:56:47,919 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 10:56:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 10:56:47,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 10:56:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 10:56:47,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 10:56:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:56:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-16 10:56:47,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-16 10:56:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:56:47,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:56:48,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:56:48,157 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:56:48,883 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:56:48,891 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:56:48,892 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 10:56:48,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:56:48 BoogieIcfgContainer [2022-11-16 10:56:48,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:56:48,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:56:48,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:56:48,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:56:48,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:56:46" (1/3) ... [2022-11-16 10:56:48,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6539c060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:56:48, skipping insertion in model container [2022-11-16 10:56:48,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:56:47" (2/3) ... [2022-11-16 10:56:48,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6539c060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:56:48, skipping insertion in model container [2022-11-16 10:56:48,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:56:48" (3/3) ... [2022-11-16 10:56:48,904 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product36.cil.c [2022-11-16 10:56:48,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:56:48,929 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 10:56:48,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:56:48,999 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;@7e501ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:56:48,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 10:56:49,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 185 states have (on average 1.5513513513513513) internal successors, (287), 188 states have internal predecessors, (287), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-16 10:56:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 10:56:49,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:49,033 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:56:49,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:49,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:49,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1065275904, now seen corresponding path program 1 times [2022-11-16 10:56:49,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:49,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791678669] [2022-11-16 10:56:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:56:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:56:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 10:56:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 10:56:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 10:56:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 10:56:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 10:56:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 10:56:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 10:56:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 10:56:49,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:49,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791678669] [2022-11-16 10:56:49,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791678669] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:56:49,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107814108] [2022-11-16 10:56:49,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:49,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:49,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:49,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:56:49,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 10:56:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 10:56:50,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 10:56:50,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:50,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107814108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:50,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:56:50,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-11-16 10:56:50,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419300213] [2022-11-16 10:56:50,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:50,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 10:56:50,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:50,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 10:56:50,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:50,216 INFO L87 Difference]: Start difference. First operand has 232 states, 185 states have (on average 1.5513513513513513) internal successors, (287), 188 states have internal predecessors, (287), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:56:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:50,263 INFO L93 Difference]: Finished difference Result 370 states and 545 transitions. [2022-11-16 10:56:50,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 10:56:50,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2022-11-16 10:56:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:50,277 INFO L225 Difference]: With dead ends: 370 [2022-11-16 10:56:50,278 INFO L226 Difference]: Without dead ends: 225 [2022-11-16 10:56:50,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:50,286 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:50,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 10:56:50,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-16 10:56:50,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-11-16 10:56:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 179 states have (on average 1.541899441340782) internal successors, (276), 181 states have internal predecessors, (276), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-16 10:56:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 337 transitions. [2022-11-16 10:56:50,343 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 337 transitions. Word has length 78 [2022-11-16 10:56:50,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:50,345 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 337 transitions. [2022-11-16 10:56:50,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:56:50,346 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 337 transitions. [2022-11-16 10:56:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 10:56:50,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:50,350 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:56:50,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 10:56:50,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 10:56:50,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:50,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1762266967, now seen corresponding path program 1 times [2022-11-16 10:56:50,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:50,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071362237] [2022-11-16 10:56:50,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:50,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:56:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:56:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 10:56:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 10:56:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 10:56:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 10:56:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 10:56:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 10:56:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 10:56:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 10:56:50,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:50,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071362237] [2022-11-16 10:56:50,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071362237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:56:50,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866269544] [2022-11-16 10:56:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:50,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:50,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:56:50,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 10:56:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 10:56:51,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:51,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 10:56:51,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:51,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866269544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:51,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:56:51,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-16 10:56:51,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743106058] [2022-11-16 10:56:51,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:51,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:56:51,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:51,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:56:51,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 10:56:51,127 INFO L87 Difference]: Start difference. First operand 225 states and 337 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:56:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:51,200 INFO L93 Difference]: Finished difference Result 360 states and 523 transitions. [2022-11-16 10:56:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:56:51,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2022-11-16 10:56:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:51,205 INFO L225 Difference]: With dead ends: 360 [2022-11-16 10:56:51,205 INFO L226 Difference]: Without dead ends: 228 [2022-11-16 10:56:51,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 10:56:51,208 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:51,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 668 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 10:56:51,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-16 10:56:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 227. [2022-11-16 10:56:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 181 states have (on average 1.5359116022099448) internal successors, (278), 183 states have internal predecessors, (278), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-16 10:56:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 339 transitions. [2022-11-16 10:56:51,229 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 339 transitions. Word has length 79 [2022-11-16 10:56:51,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:51,229 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 339 transitions. [2022-11-16 10:56:51,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:56:51,230 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 339 transitions. [2022-11-16 10:56:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 10:56:51,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:51,239 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:56:51,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 10:56:51,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:51,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:51,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1824935857, now seen corresponding path program 1 times [2022-11-16 10:56:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:51,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252208242] [2022-11-16 10:56:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:51,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:56:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:56:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 10:56:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 10:56:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 10:56:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 10:56:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 10:56:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 10:56:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 10:56:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 10:56:51,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:51,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252208242] [2022-11-16 10:56:51,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252208242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:56:51,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979534492] [2022-11-16 10:56:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:51,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:51,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:51,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:56:51,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 10:56:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:51,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 10:56:51,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:52,053 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 10:56:52,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:52,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979534492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:52,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:56:52,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-16 10:56:52,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158431456] [2022-11-16 10:56:52,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:52,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:56:52,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:52,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:56:52,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-16 10:56:52,056 INFO L87 Difference]: Start difference. First operand 227 states and 339 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 10:56:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:52,117 INFO L93 Difference]: Finished difference Result 447 states and 671 transitions. [2022-11-16 10:56:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:56:52,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2022-11-16 10:56:52,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:52,120 INFO L225 Difference]: With dead ends: 447 [2022-11-16 10:56:52,120 INFO L226 Difference]: Without dead ends: 229 [2022-11-16 10:56:52,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-16 10:56:52,123 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 108 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:52,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1197 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 10:56:52,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-16 10:56:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-11-16 10:56:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 182 states have (on average 1.532967032967033) internal successors, (279), 185 states have internal predecessors, (279), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (32), 29 states have call predecessors, (32), 30 states have call successors, (32) [2022-11-16 10:56:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 342 transitions. [2022-11-16 10:56:52,142 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 342 transitions. Word has length 84 [2022-11-16 10:56:52,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:52,143 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 342 transitions. [2022-11-16 10:56:52,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 10:56:52,143 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 342 transitions. [2022-11-16 10:56:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 10:56:52,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:52,152 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:56:52,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 10:56:52,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:52,358 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash -388126467, now seen corresponding path program 1 times [2022-11-16 10:56:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:52,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675474645] [2022-11-16 10:56:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:52,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:56:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:56:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:56:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 10:56:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-16 10:56:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 10:56:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 10:56:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 10:56:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 10:56:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 10:56:52,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675474645] [2022-11-16 10:56:52,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675474645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:52,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:52,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:56:52,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366352372] [2022-11-16 10:56:52,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:52,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:56:52,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:52,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:56:52,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:52,643 INFO L87 Difference]: Start difference. First operand 229 states and 342 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 10:56:54,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:54,594 INFO L93 Difference]: Finished difference Result 577 states and 897 transitions. [2022-11-16 10:56:54,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 10:56:54,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2022-11-16 10:56:54,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:54,599 INFO L225 Difference]: With dead ends: 577 [2022-11-16 10:56:54,599 INFO L226 Difference]: Without dead ends: 367 [2022-11-16 10:56:54,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-16 10:56:54,601 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 651 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:54,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 677 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 10:56:54,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-16 10:56:54,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 229. [2022-11-16 10:56:54,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 182 states have (on average 1.532967032967033) internal successors, (279), 185 states have internal predecessors, (279), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (31), 29 states have call predecessors, (31), 30 states have call successors, (31) [2022-11-16 10:56:54,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 341 transitions. [2022-11-16 10:56:54,642 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 341 transitions. Word has length 85 [2022-11-16 10:56:54,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:54,642 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 341 transitions. [2022-11-16 10:56:54,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 10:56:54,643 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 341 transitions. [2022-11-16 10:56:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 10:56:54,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:54,645 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:56:54,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:56:54,646 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:54,647 INFO L85 PathProgramCache]: Analyzing trace with hash 466057523, now seen corresponding path program 2 times [2022-11-16 10:56:54,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:54,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100682361] [2022-11-16 10:56:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:54,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:56:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:56:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:56:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-16 10:56:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 10:56:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 10:56:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 10:56:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 10:56:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 10:56:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 10:56:54,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:54,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100682361] [2022-11-16 10:56:54,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100682361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:54,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:54,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:56:54,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061782671] [2022-11-16 10:56:54,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:54,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:56:54,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:54,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:56:54,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:54,846 INFO L87 Difference]: Start difference. First operand 229 states and 341 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 10:56:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:56,473 INFO L93 Difference]: Finished difference Result 579 states and 900 transitions. [2022-11-16 10:56:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 10:56:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2022-11-16 10:56:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:56,477 INFO L225 Difference]: With dead ends: 579 [2022-11-16 10:56:56,477 INFO L226 Difference]: Without dead ends: 369 [2022-11-16 10:56:56,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-16 10:56:56,479 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 652 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:56,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 678 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 10:56:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-16 10:56:56,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 231. [2022-11-16 10:56:56,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 183 states have (on average 1.530054644808743) internal successors, (280), 187 states have internal predecessors, (280), 31 states have call successors, (31), 14 states have call predecessors, (31), 16 states have return successors, (33), 29 states have call predecessors, (33), 30 states have call successors, (33) [2022-11-16 10:56:56,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 344 transitions. [2022-11-16 10:56:56,527 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 344 transitions. Word has length 86 [2022-11-16 10:56:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:56,527 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 344 transitions. [2022-11-16 10:56:56,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-16 10:56:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 344 transitions. [2022-11-16 10:56:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 10:56:56,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:56,529 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:56:56,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:56:56,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1107508456, now seen corresponding path program 1 times [2022-11-16 10:56:56,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:56,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245175829] [2022-11-16 10:56:56,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:56,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:56:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:56:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:56:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 10:56:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 10:56:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 10:56:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 10:56:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 10:56:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 10:56:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:56:56,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:56,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245175829] [2022-11-16 10:56:56,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245175829] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:56:56,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063667007] [2022-11-16 10:56:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:56,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:56,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:56:56,660 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:56:56,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 10:56:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:56,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 10:56:56,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:56:56,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:56:57,021 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:56:57,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063667007] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:56:57,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:56:57,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-11-16 10:56:57,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072571885] [2022-11-16 10:56:57,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:56:57,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 10:56:57,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 10:56:57,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:56:57,024 INFO L87 Difference]: Start difference. First operand 231 states and 344 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 10:56:58,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:58,835 INFO L93 Difference]: Finished difference Result 684 states and 1091 transitions. [2022-11-16 10:56:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 10:56:58,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 87 [2022-11-16 10:56:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:58,840 INFO L225 Difference]: With dead ends: 684 [2022-11-16 10:56:58,840 INFO L226 Difference]: Without dead ends: 552 [2022-11-16 10:56:58,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-16 10:56:58,842 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1089 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:58,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1010 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 10:56:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-11-16 10:56:58,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 390. [2022-11-16 10:56:58,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 333 states have (on average 1.6516516516516517) internal successors, (550), 337 states have internal predecessors, (550), 40 states have call successors, (40), 14 states have call predecessors, (40), 16 states have return successors, (42), 38 states have call predecessors, (42), 39 states have call successors, (42) [2022-11-16 10:56:58,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 632 transitions. [2022-11-16 10:56:58,896 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 632 transitions. Word has length 87 [2022-11-16 10:56:58,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:58,897 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 632 transitions. [2022-11-16 10:56:58,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 10:56:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 632 transitions. [2022-11-16 10:56:58,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-16 10:56:58,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:58,900 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:56:58,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 10:56:59,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:56:59,106 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:59,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:59,109 INFO L85 PathProgramCache]: Analyzing trace with hash 53577619, now seen corresponding path program 1 times [2022-11-16 10:56:59,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:56:59,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373247769] [2022-11-16 10:56:59,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:59,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:56:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:56:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:56:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:56:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 10:56:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 10:56:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 10:56:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 10:56:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 10:56:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 10:56:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:56:59,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:56:59,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373247769] [2022-11-16 10:56:59,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373247769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:59,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:59,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:56:59,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752311298] [2022-11-16 10:56:59,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:59,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:56:59,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:56:59,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:56:59,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:56:59,236 INFO L87 Difference]: Start difference. First operand 390 states and 632 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:00,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:00,595 INFO L93 Difference]: Finished difference Result 1056 states and 1763 transitions. [2022-11-16 10:57:00,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:00,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2022-11-16 10:57:00,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:00,603 INFO L225 Difference]: With dead ends: 1056 [2022-11-16 10:57:00,603 INFO L226 Difference]: Without dead ends: 694 [2022-11-16 10:57:00,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:00,606 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 639 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:00,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 561 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 10:57:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-11-16 10:57:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 548. [2022-11-16 10:57:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 482 states have (on average 1.6867219917012448) internal successors, (813), 486 states have internal predecessors, (813), 49 states have call successors, (49), 14 states have call predecessors, (49), 16 states have return successors, (51), 47 states have call predecessors, (51), 48 states have call successors, (51) [2022-11-16 10:57:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 913 transitions. [2022-11-16 10:57:00,658 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 913 transitions. Word has length 94 [2022-11-16 10:57:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:00,660 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 913 transitions. [2022-11-16 10:57:00,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:00,661 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 913 transitions. [2022-11-16 10:57:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 10:57:00,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:00,666 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:00,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 10:57:00,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1247240784, now seen corresponding path program 1 times [2022-11-16 10:57:00,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:00,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633745645] [2022-11-16 10:57:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 10:57:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 10:57:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 10:57:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 10:57:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 10:57:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 10:57:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:00,772 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:00,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:00,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633745645] [2022-11-16 10:57:00,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633745645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:00,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:00,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:00,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47205587] [2022-11-16 10:57:00,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:00,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:00,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:00,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:00,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:00,775 INFO L87 Difference]: Start difference. First operand 548 states and 913 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:02,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:02,126 INFO L93 Difference]: Finished difference Result 1433 states and 2441 transitions. [2022-11-16 10:57:02,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:02,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2022-11-16 10:57:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:02,132 INFO L225 Difference]: With dead ends: 1433 [2022-11-16 10:57:02,132 INFO L226 Difference]: Without dead ends: 931 [2022-11-16 10:57:02,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:02,135 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 637 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:02,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 551 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 10:57:02,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-11-16 10:57:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 785. [2022-11-16 10:57:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 704 states have (on average 1.7116477272727273) internal successors, (1205), 708 states have internal predecessors, (1205), 64 states have call successors, (64), 14 states have call predecessors, (64), 16 states have return successors, (66), 62 states have call predecessors, (66), 63 states have call successors, (66) [2022-11-16 10:57:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1335 transitions. [2022-11-16 10:57:02,190 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1335 transitions. Word has length 95 [2022-11-16 10:57:02,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:02,191 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1335 transitions. [2022-11-16 10:57:02,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:02,191 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1335 transitions. [2022-11-16 10:57:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 10:57:02,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:02,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:02,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 10:57:02,195 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:02,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash 827177237, now seen corresponding path program 1 times [2022-11-16 10:57:02,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:02,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692496711] [2022-11-16 10:57:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:02,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 10:57:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 10:57:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 10:57:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 10:57:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 10:57:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 10:57:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:02,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:02,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692496711] [2022-11-16 10:57:02,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692496711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:02,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:02,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:02,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427768453] [2022-11-16 10:57:02,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:02,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:02,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:02,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:02,322 INFO L87 Difference]: Start difference. First operand 785 states and 1335 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:03,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:03,549 INFO L93 Difference]: Finished difference Result 2054 states and 3545 transitions. [2022-11-16 10:57:03,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2022-11-16 10:57:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:03,557 INFO L225 Difference]: With dead ends: 2054 [2022-11-16 10:57:03,557 INFO L226 Difference]: Without dead ends: 1334 [2022-11-16 10:57:03,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:03,561 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 630 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:03,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 581 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 10:57:03,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-11-16 10:57:03,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1188. [2022-11-16 10:57:03,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1083 states have (on average 1.7202216066481995) internal successors, (1863), 1087 states have internal predecessors, (1863), 88 states have call successors, (88), 14 states have call predecessors, (88), 16 states have return successors, (90), 86 states have call predecessors, (90), 87 states have call successors, (90) [2022-11-16 10:57:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 2041 transitions. [2022-11-16 10:57:03,672 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 2041 transitions. Word has length 96 [2022-11-16 10:57:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:03,672 INFO L495 AbstractCegarLoop]: Abstraction has 1188 states and 2041 transitions. [2022-11-16 10:57:03,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 2041 transitions. [2022-11-16 10:57:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 10:57:03,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:03,678 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:03,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 10:57:03,678 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:03,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:03,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1403867838, now seen corresponding path program 1 times [2022-11-16 10:57:03,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:03,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790443128] [2022-11-16 10:57:03,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:03,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 10:57:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 10:57:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 10:57:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 10:57:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 10:57:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 10:57:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:03,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:03,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790443128] [2022-11-16 10:57:03,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790443128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:03,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:03,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379540722] [2022-11-16 10:57:03,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:03,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:03,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:03,778 INFO L87 Difference]: Start difference. First operand 1188 states and 2041 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:05,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:05,178 INFO L93 Difference]: Finished difference Result 3059 states and 5316 transitions. [2022-11-16 10:57:05,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:05,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2022-11-16 10:57:05,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:05,196 INFO L225 Difference]: With dead ends: 3059 [2022-11-16 10:57:05,196 INFO L226 Difference]: Without dead ends: 1984 [2022-11-16 10:57:05,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:05,200 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 634 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:05,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 559 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 10:57:05,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2022-11-16 10:57:05,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1838. [2022-11-16 10:57:05,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1694 states have (on average 1.7207792207792207) internal successors, (2915), 1698 states have internal predecessors, (2915), 127 states have call successors, (127), 14 states have call predecessors, (127), 16 states have return successors, (129), 125 states have call predecessors, (129), 126 states have call successors, (129) [2022-11-16 10:57:05,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 3171 transitions. [2022-11-16 10:57:05,334 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 3171 transitions. Word has length 97 [2022-11-16 10:57:05,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:05,335 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 3171 transitions. [2022-11-16 10:57:05,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 3171 transitions. [2022-11-16 10:57:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 10:57:05,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:05,346 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:05,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 10:57:05,347 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:05,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash 990625047, now seen corresponding path program 1 times [2022-11-16 10:57:05,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:05,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138850542] [2022-11-16 10:57:05,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 10:57:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 10:57:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 10:57:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 10:57:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 10:57:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 10:57:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:05,491 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:05,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:05,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138850542] [2022-11-16 10:57:05,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138850542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:05,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:05,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:05,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214721543] [2022-11-16 10:57:05,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:05,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:05,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:05,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:05,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:05,495 INFO L87 Difference]: Start difference. First operand 1838 states and 3171 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:06,946 INFO L93 Difference]: Finished difference Result 4714 states and 8216 transitions. [2022-11-16 10:57:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:06,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2022-11-16 10:57:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:06,961 INFO L225 Difference]: With dead ends: 4714 [2022-11-16 10:57:06,961 INFO L226 Difference]: Without dead ends: 3069 [2022-11-16 10:57:06,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:06,966 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 626 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:06,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 559 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 10:57:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2022-11-16 10:57:07,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2923. [2022-11-16 10:57:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2713 states have (on average 1.7176557316623664) internal successors, (4660), 2717 states have internal predecessors, (4660), 193 states have call successors, (193), 14 states have call predecessors, (193), 16 states have return successors, (195), 191 states have call predecessors, (195), 192 states have call successors, (195) [2022-11-16 10:57:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 5048 transitions. [2022-11-16 10:57:07,181 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 5048 transitions. Word has length 98 [2022-11-16 10:57:07,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:07,183 INFO L495 AbstractCegarLoop]: Abstraction has 2923 states and 5048 transitions. [2022-11-16 10:57:07,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:07,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 5048 transitions. [2022-11-16 10:57:07,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 10:57:07,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:07,193 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:07,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 10:57:07,194 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:07,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1327158592, now seen corresponding path program 1 times [2022-11-16 10:57:07,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:07,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272596454] [2022-11-16 10:57:07,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:07,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 10:57:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 10:57:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 10:57:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 10:57:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 10:57:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 10:57:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:07,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:07,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272596454] [2022-11-16 10:57:07,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272596454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:07,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:07,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784349883] [2022-11-16 10:57:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:07,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:07,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:07,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:07,360 INFO L87 Difference]: Start difference. First operand 2923 states and 5048 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:08,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:08,914 INFO L93 Difference]: Finished difference Result 7294 states and 12756 transitions. [2022-11-16 10:57:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:08,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2022-11-16 10:57:08,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:08,940 INFO L225 Difference]: With dead ends: 7294 [2022-11-16 10:57:08,940 INFO L226 Difference]: Without dead ends: 4764 [2022-11-16 10:57:08,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:08,948 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 625 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:08,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 547 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 10:57:08,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2022-11-16 10:57:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 4618. [2022-11-16 10:57:09,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4618 states, 4291 states have (on average 1.718247494756467) internal successors, (7373), 4295 states have internal predecessors, (7373), 310 states have call successors, (310), 14 states have call predecessors, (310), 16 states have return successors, (312), 308 states have call predecessors, (312), 309 states have call successors, (312) [2022-11-16 10:57:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4618 states to 4618 states and 7995 transitions. [2022-11-16 10:57:09,321 INFO L78 Accepts]: Start accepts. Automaton has 4618 states and 7995 transitions. Word has length 99 [2022-11-16 10:57:09,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:09,322 INFO L495 AbstractCegarLoop]: Abstraction has 4618 states and 7995 transitions. [2022-11-16 10:57:09,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4618 states and 7995 transitions. [2022-11-16 10:57:09,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 10:57:09,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:09,340 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:09,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 10:57:09,340 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:09,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:09,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1153535719, now seen corresponding path program 1 times [2022-11-16 10:57:09,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:09,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952724391] [2022-11-16 10:57:09,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:09,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 10:57:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 10:57:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 10:57:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 10:57:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 10:57:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 10:57:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:09,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:09,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952724391] [2022-11-16 10:57:09,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952724391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:09,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:09,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:09,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979442743] [2022-11-16 10:57:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:09,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:09,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:09,470 INFO L87 Difference]: Start difference. First operand 4618 states and 7995 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:11,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:11,212 INFO L93 Difference]: Finished difference Result 12081 states and 21119 transitions. [2022-11-16 10:57:11,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:11,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2022-11-16 10:57:11,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:11,270 INFO L225 Difference]: With dead ends: 12081 [2022-11-16 10:57:11,270 INFO L226 Difference]: Without dead ends: 8024 [2022-11-16 10:57:11,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:11,281 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 627 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:11,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 579 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 10:57:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-11-16 10:57:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 7878. [2022-11-16 10:57:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7878 states, 7335 states have (on average 1.713019768234492) internal successors, (12565), 7339 states have internal predecessors, (12565), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2022-11-16 10:57:11,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7878 states to 7878 states and 13619 transitions. [2022-11-16 10:57:11,951 INFO L78 Accepts]: Start accepts. Automaton has 7878 states and 13619 transitions. Word has length 100 [2022-11-16 10:57:11,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:11,952 INFO L495 AbstractCegarLoop]: Abstraction has 7878 states and 13619 transitions. [2022-11-16 10:57:11,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:11,952 INFO L276 IsEmpty]: Start isEmpty. Operand 7878 states and 13619 transitions. [2022-11-16 10:57:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-16 10:57:11,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:11,974 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:11,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 10:57:11,974 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:11,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:11,975 INFO L85 PathProgramCache]: Analyzing trace with hash 288373842, now seen corresponding path program 1 times [2022-11-16 10:57:11,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:11,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460336817] [2022-11-16 10:57:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:11,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 10:57:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 10:57:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 10:57:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 10:57:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 10:57:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 10:57:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:12,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:12,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460336817] [2022-11-16 10:57:12,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460336817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:12,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:12,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148337908] [2022-11-16 10:57:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:12,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:12,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:12,098 INFO L87 Difference]: Start difference. First operand 7878 states and 13619 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:14,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:14,347 INFO L93 Difference]: Finished difference Result 18176 states and 31406 transitions. [2022-11-16 10:57:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:14,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2022-11-16 10:57:14,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:14,389 INFO L225 Difference]: With dead ends: 18176 [2022-11-16 10:57:14,389 INFO L226 Difference]: Without dead ends: 11635 [2022-11-16 10:57:14,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:14,405 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 627 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:14,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 526 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 10:57:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11635 states. [2022-11-16 10:57:15,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11635 to 11489. [2022-11-16 10:57:15,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11489 states, 10946 states have (on average 1.6890188196601499) internal successors, (18488), 10950 states have internal predecessors, (18488), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2022-11-16 10:57:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11489 states to 11489 states and 19542 transitions. [2022-11-16 10:57:15,443 INFO L78 Accepts]: Start accepts. Automaton has 11489 states and 19542 transitions. Word has length 101 [2022-11-16 10:57:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:15,444 INFO L495 AbstractCegarLoop]: Abstraction has 11489 states and 19542 transitions. [2022-11-16 10:57:15,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 11489 states and 19542 transitions. [2022-11-16 10:57:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 10:57:15,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:15,482 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:15,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 10:57:15,482 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash -464922725, now seen corresponding path program 1 times [2022-11-16 10:57:15,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:15,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873039451] [2022-11-16 10:57:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:15,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 10:57:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 10:57:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 10:57:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 10:57:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 10:57:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 10:57:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:15,611 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:15,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:15,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873039451] [2022-11-16 10:57:15,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873039451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:15,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:15,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:15,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594529959] [2022-11-16 10:57:15,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:15,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:15,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:15,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:15,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:15,615 INFO L87 Difference]: Start difference. First operand 11489 states and 19542 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:17,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:17,922 INFO L93 Difference]: Finished difference Result 30726 states and 52542 transitions. [2022-11-16 10:57:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:17,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-11-16 10:57:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:17,990 INFO L225 Difference]: With dead ends: 30726 [2022-11-16 10:57:17,991 INFO L226 Difference]: Without dead ends: 20897 [2022-11-16 10:57:18,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:18,009 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 621 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:18,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 581 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 10:57:18,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20897 states. [2022-11-16 10:57:19,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20897 to 20751. [2022-11-16 10:57:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20751 states, 19797 states have (on average 1.677829974238521) internal successors, (33216), 19801 states have internal predecessors, (33216), 937 states have call successors, (937), 14 states have call predecessors, (937), 16 states have return successors, (939), 935 states have call predecessors, (939), 936 states have call successors, (939) [2022-11-16 10:57:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20751 states to 20751 states and 35092 transitions. [2022-11-16 10:57:19,677 INFO L78 Accepts]: Start accepts. Automaton has 20751 states and 35092 transitions. Word has length 102 [2022-11-16 10:57:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:19,677 INFO L495 AbstractCegarLoop]: Abstraction has 20751 states and 35092 transitions. [2022-11-16 10:57:19,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 20751 states and 35092 transitions. [2022-11-16 10:57:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-16 10:57:19,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:19,720 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 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] [2022-11-16 10:57:19,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 10:57:19,720 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:19,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1147279506, now seen corresponding path program 2 times [2022-11-16 10:57:19,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:19,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192194673] [2022-11-16 10:57:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:19,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 10:57:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 10:57:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 10:57:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 10:57:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 10:57:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 10:57:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:19,827 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 10:57:19,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:19,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192194673] [2022-11-16 10:57:19,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192194673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:19,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:19,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:19,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829547466] [2022-11-16 10:57:19,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:19,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:19,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:19,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:19,830 INFO L87 Difference]: Start difference. First operand 20751 states and 35092 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:22,346 INFO L93 Difference]: Finished difference Result 39348 states and 66753 transitions. [2022-11-16 10:57:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:22,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2022-11-16 10:57:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:22,415 INFO L225 Difference]: With dead ends: 39348 [2022-11-16 10:57:22,416 INFO L226 Difference]: Without dead ends: 20897 [2022-11-16 10:57:22,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:22,447 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 639 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:22,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 916 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 10:57:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20897 states. [2022-11-16 10:57:23,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20897 to 20751. [2022-11-16 10:57:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20751 states, 19797 states have (on average 1.6643935949891397) internal successors, (32950), 19801 states have internal predecessors, (32950), 937 states have call successors, (937), 14 states have call predecessors, (937), 16 states have return successors, (939), 935 states have call predecessors, (939), 936 states have call successors, (939) [2022-11-16 10:57:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20751 states to 20751 states and 34826 transitions. [2022-11-16 10:57:24,061 INFO L78 Accepts]: Start accepts. Automaton has 20751 states and 34826 transitions. Word has length 102 [2022-11-16 10:57:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:24,061 INFO L495 AbstractCegarLoop]: Abstraction has 20751 states and 34826 transitions. [2022-11-16 10:57:24,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 20751 states and 34826 transitions. [2022-11-16 10:57:24,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 10:57:24,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:24,095 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:24,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 10:57:24,096 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:24,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:24,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1088046568, now seen corresponding path program 1 times [2022-11-16 10:57:24,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:24,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197086711] [2022-11-16 10:57:24,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:24,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 10:57:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 10:57:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 10:57:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 10:57:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 10:57:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 10:57:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:24,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:24,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197086711] [2022-11-16 10:57:24,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197086711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:24,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:24,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:24,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491361384] [2022-11-16 10:57:24,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:24,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:24,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:24,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:24,225 INFO L87 Difference]: Start difference. First operand 20751 states and 34826 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:27,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:27,573 INFO L93 Difference]: Finished difference Result 57223 states and 96314 transitions. [2022-11-16 10:57:27,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:27,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-11-16 10:57:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:27,698 INFO L225 Difference]: With dead ends: 57223 [2022-11-16 10:57:27,699 INFO L226 Difference]: Without dead ends: 38676 [2022-11-16 10:57:27,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:27,727 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 618 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:27,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 579 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 10:57:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38676 states. [2022-11-16 10:57:30,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38676 to 38530. [2022-11-16 10:57:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38530 states, 36778 states have (on average 1.6499265865463049) internal successors, (60681), 36782 states have internal predecessors, (60681), 1735 states have call successors, (1735), 14 states have call predecessors, (1735), 16 states have return successors, (1737), 1733 states have call predecessors, (1737), 1734 states have call successors, (1737) [2022-11-16 10:57:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38530 states to 38530 states and 64153 transitions. [2022-11-16 10:57:30,342 INFO L78 Accepts]: Start accepts. Automaton has 38530 states and 64153 transitions. Word has length 103 [2022-11-16 10:57:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:30,343 INFO L495 AbstractCegarLoop]: Abstraction has 38530 states and 64153 transitions. [2022-11-16 10:57:30,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 38530 states and 64153 transitions. [2022-11-16 10:57:30,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-16 10:57:30,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:30,378 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:30,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 10:57:30,378 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:30,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:30,379 INFO L85 PathProgramCache]: Analyzing trace with hash 477402909, now seen corresponding path program 1 times [2022-11-16 10:57:30,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:30,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129551746] [2022-11-16 10:57:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:30,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 10:57:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 10:57:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 10:57:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 10:57:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 10:57:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 10:57:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:30,477 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 10:57:30,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:30,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129551746] [2022-11-16 10:57:30,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129551746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:30,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:30,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:57:30,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658683877] [2022-11-16 10:57:30,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:30,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:30,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:30,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:30,480 INFO L87 Difference]: Start difference. First operand 38530 states and 64153 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:35,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:35,106 INFO L93 Difference]: Finished difference Result 73266 states and 121928 transitions. [2022-11-16 10:57:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:57:35,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2022-11-16 10:57:35,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:35,315 INFO L225 Difference]: With dead ends: 73266 [2022-11-16 10:57:35,315 INFO L226 Difference]: Without dead ends: 73134 [2022-11-16 10:57:35,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:57:35,336 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 615 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:35,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 559 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 10:57:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73134 states. [2022-11-16 10:57:39,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73134 to 72988. [2022-11-16 10:57:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72988 states, 69667 states have (on average 1.6333988832589317) internal successors, (113794), 69671 states have internal predecessors, (113794), 3304 states have call successors, (3304), 14 states have call predecessors, (3304), 16 states have return successors, (3306), 3302 states have call predecessors, (3306), 3303 states have call successors, (3306) [2022-11-16 10:57:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72988 states to 72988 states and 120404 transitions. [2022-11-16 10:57:39,680 INFO L78 Accepts]: Start accepts. Automaton has 72988 states and 120404 transitions. Word has length 104 [2022-11-16 10:57:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:57:39,680 INFO L495 AbstractCegarLoop]: Abstraction has 72988 states and 120404 transitions. [2022-11-16 10:57:39,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 10:57:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 72988 states and 120404 transitions. [2022-11-16 10:57:39,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-16 10:57:39,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:57:39,721 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 10:57:39,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 10:57:39,722 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:57:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1028364650, now seen corresponding path program 1 times [2022-11-16 10:57:39,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:39,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833354372] [2022-11-16 10:57:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:39,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 10:57:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 10:57:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 10:57:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 10:57:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 10:57:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 10:57:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 10:57:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 10:57:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 10:57:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 10:57:40,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:40,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833354372] [2022-11-16 10:57:40,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833354372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:57:40,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508575312] [2022-11-16 10:57:40,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:40,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:57:40,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:40,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:57:40,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f9dc36-765c-4261-b6dd-32dd2040db73/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 10:57:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 10:57:40,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:57:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 10:57:40,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:57:40,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508575312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:40,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:57:40,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-11-16 10:57:40,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29347975] [2022-11-16 10:57:40,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:41,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 10:57:41,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:41,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 10:57:41,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-11-16 10:57:41,001 INFO L87 Difference]: Start difference. First operand 72988 states and 120404 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-16 10:57:45,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:57:45,865 INFO L93 Difference]: Finished difference Result 73396 states and 121008 transitions. [2022-11-16 10:57:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 10:57:45,866 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 105 [2022-11-16 10:57:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:57:46,190 INFO L225 Difference]: With dead ends: 73396 [2022-11-16 10:57:46,191 INFO L226 Difference]: Without dead ends: 73270 [2022-11-16 10:57:46,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2022-11-16 10:57:46,219 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 770 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 10:57:46,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 3708 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 10:57:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73270 states.