./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ --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 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b --- 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-dbf71c6-m [2022-10-17 10:36:20,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:36:20,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:36:20,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:36:20,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:36:20,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:36:20,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:36:20,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:36:20,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:36:20,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:36:20,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:36:20,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:36:20,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:36:20,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:36:20,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:36:20,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:36:20,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:36:20,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:36:20,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:36:20,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:36:20,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:36:20,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:36:20,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:36:20,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:36:20,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:36:20,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:36:20,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:36:20,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:36:20,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:36:20,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:36:20,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:36:20,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:36:20,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:36:20,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:36:20,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:36:20,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:36:20,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:36:20,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:36:20,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:36:20,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:36:20,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:36:20,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:36:20,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:36:20,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:36:20,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:36:20,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:36:20,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:36:20,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:36:20,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:36:20,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:36:20,704 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:36:20,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:36:20,706 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:36:20,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:36:20,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:36:20,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:36:20,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:36:20,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:36:20,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:36:20,708 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:36:20,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:36:20,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:36:20,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:36:20,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:36:20,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:36:20,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:36:20,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:36:20,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:36:20,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:36:20,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:36:20,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:36:20,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:36:20,713 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:36:20,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:36:20,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:36:20,714 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_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b [2022-10-17 10:36:21,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:36:21,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:36:21,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:36:21,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:36:21,070 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:36:21,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2022-10-17 10:36:21,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/data/80d28ef85/0d3c91251aa14867a23ed7c86e66d5de/FLAGec77766ce [2022-10-17 10:36:21,926 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:36:21,927 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2022-10-17 10:36:21,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/data/80d28ef85/0d3c91251aa14867a23ed7c86e66d5de/FLAGec77766ce [2022-10-17 10:36:22,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/data/80d28ef85/0d3c91251aa14867a23ed7c86e66d5de [2022-10-17 10:36:22,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:36:22,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:36:22,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:36:22,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:36:22,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:36:22,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:36:22" (1/1) ... [2022-10-17 10:36:22,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7185000f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:22, skipping insertion in model container [2022-10-17 10:36:22,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:36:22" (1/1) ... [2022-10-17 10:36:22,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:36:22,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:36:22,625 WARN L230 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_4eb9dc00-f65b-445d-95f6-0d49654467dd/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2022-10-17 10:36:23,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:36:23,028 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:36:23,116 WARN L230 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_4eb9dc00-f65b-445d-95f6-0d49654467dd/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2022-10-17 10:36:23,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:36:23,291 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:36:23,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23 WrapperNode [2022-10-17 10:36:23,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:36:23,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:36:23,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:36:23,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:36:23,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,456 INFO L138 Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 994 [2022-10-17 10:36:23,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:36:23,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:36:23,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:36:23,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:36:23,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:36:23,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:36:23,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:36:23,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:36:23,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (1/1) ... [2022-10-17 10:36:23,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:36:23,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:23,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:36:23,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:36:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-10-17 10:36:23,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-10-17 10:36:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-10-17 10:36:23,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-10-17 10:36:23,783 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-10-17 10:36:23,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-10-17 10:36:23,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-10-17 10:36:23,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-10-17 10:36:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-10-17 10:36:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-10-17 10:36:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-10-17 10:36:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-10-17 10:36:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-10-17 10:36:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-10-17 10:36:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-10-17 10:36:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-10-17 10:36:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-10-17 10:36:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-10-17 10:36:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-10-17 10:36:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-10-17 10:36:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-10-17 10:36:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-10-17 10:36:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-10-17 10:36:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-10-17 10:36:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-10-17 10:36:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-10-17 10:36:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-10-17 10:36:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-10-17 10:36:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-10-17 10:36:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-10-17 10:36:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-10-17 10:36:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:36:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-10-17 10:36:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-10-17 10:36:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-10-17 10:36:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-10-17 10:36:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-10-17 10:36:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-10-17 10:36:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-10-17 10:36:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-10-17 10:36:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-10-17 10:36:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-10-17 10:36:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-10-17 10:36:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-10-17 10:36:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-10-17 10:36:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-10-17 10:36:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-10-17 10:36:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-10-17 10:36:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-10-17 10:36:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-10-17 10:36:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-10-17 10:36:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-10-17 10:36:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-10-17 10:36:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-10-17 10:36:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-10-17 10:36:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-10-17 10:36:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:36:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-10-17 10:36:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-10-17 10:36:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-10-17 10:36:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-10-17 10:36:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:36:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:36:24,174 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:36:24,179 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:36:25,425 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:36:25,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:36:25,449 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:36:25,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:36:25 BoogieIcfgContainer [2022-10-17 10:36:25,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:36:25,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:36:25,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:36:25,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:36:25,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:36:22" (1/3) ... [2022-10-17 10:36:25,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d9d9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:36:25, skipping insertion in model container [2022-10-17 10:36:25,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:23" (2/3) ... [2022-10-17 10:36:25,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d9d9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:36:25, skipping insertion in model container [2022-10-17 10:36:25,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:36:25" (3/3) ... [2022-10-17 10:36:25,466 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2022-10-17 10:36:25,489 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:36:25,489 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:36:25,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:36:25,577 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;@4c707a32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:36:25,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:36:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 432 states, 335 states have (on average 1.5492537313432835) internal successors, (519), 340 states have internal predecessors, (519), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-10-17 10:36:25,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-17 10:36:25,624 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:25,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:25,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:25,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1947516226, now seen corresponding path program 1 times [2022-10-17 10:36:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:25,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124120074] [2022-10-17 10:36:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:25,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:36:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:36:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:36:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:36:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:36:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:36:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:36:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 10:36:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:36:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:36:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-17 10:36:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-17 10:36:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:36:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-17 10:36:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-17 10:36:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 10:36:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-17 10:36:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-17 10:36:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-17 10:36:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-17 10:36:26,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:26,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124120074] [2022-10-17 10:36:26,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124120074] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:36:26,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880977061] [2022-10-17 10:36:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:26,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:26,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:26,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:36:26,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:36:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:27,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:36:27,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:36:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-10-17 10:36:27,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:36:27,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880977061] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:27,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:36:27,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-10-17 10:36:27,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411592846] [2022-10-17 10:36:27,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:27,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:36:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:27,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:36:27,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:36:27,523 INFO L87 Difference]: Start difference. First operand has 432 states, 335 states have (on average 1.5492537313432835) internal successors, (519), 340 states have internal predecessors, (519), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 10:36:27,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:27,624 INFO L93 Difference]: Finished difference Result 671 states and 992 transitions. [2022-10-17 10:36:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:36:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 170 [2022-10-17 10:36:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:27,658 INFO L225 Difference]: With dead ends: 671 [2022-10-17 10:36:27,664 INFO L226 Difference]: Without dead ends: 425 [2022-10-17 10:36:27,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:36:27,686 INFO L413 NwaCegarLoop]: 647 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, 647 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 [2022-10-17 10:36:27,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:36:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-10-17 10:36:27,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2022-10-17 10:36:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 329 states have (on average 1.5440729483282676) internal successors, (508), 333 states have internal predecessors, (508), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-10-17 10:36:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 639 transitions. [2022-10-17 10:36:27,840 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 639 transitions. Word has length 170 [2022-10-17 10:36:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:27,842 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 639 transitions. [2022-10-17 10:36:27,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 10:36:27,843 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 639 transitions. [2022-10-17 10:36:27,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-17 10:36:27,851 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:27,852 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:27,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-17 10:36:28,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-17 10:36:28,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:28,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash -550753848, now seen corresponding path program 1 times [2022-10-17 10:36:28,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:28,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374831643] [2022-10-17 10:36:28,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:28,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:36:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:36:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:36:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-17 10:36:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-17 10:36:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:36:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-17 10:36:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:36:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:36:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:36:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:36:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:36:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 10:36:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-17 10:36:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 10:36:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-17 10:36:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-17 10:36:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-17 10:36:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-17 10:36:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-17 10:36:28,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:28,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374831643] [2022-10-17 10:36:28,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374831643] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:36:28,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065974866] [2022-10-17 10:36:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:28,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:28,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:28,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:36:28,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:36:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:28,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:36:28,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:36:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-10-17 10:36:29,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:36:29,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065974866] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:29,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:36:29,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-17 10:36:29,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447526696] [2022-10-17 10:36:29,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:29,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:29,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:29,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:29,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:36:29,037 INFO L87 Difference]: Start difference. First operand 425 states and 639 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 10:36:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:29,169 INFO L93 Difference]: Finished difference Result 661 states and 970 transitions. [2022-10-17 10:36:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:29,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 171 [2022-10-17 10:36:29,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:29,176 INFO L225 Difference]: With dead ends: 661 [2022-10-17 10:36:29,189 INFO L226 Difference]: Without dead ends: 428 [2022-10-17 10:36:29,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:36:29,193 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 1 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1272 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 [2022-10-17 10:36:29,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1272 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:36:29,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-10-17 10:36:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 427. [2022-10-17 10:36:29,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 331 states have (on average 1.540785498489426) internal successors, (510), 335 states have internal predecessors, (510), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-10-17 10:36:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 641 transitions. [2022-10-17 10:36:29,272 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 641 transitions. Word has length 171 [2022-10-17 10:36:29,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:29,272 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 641 transitions. [2022-10-17 10:36:29,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 10:36:29,273 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 641 transitions. [2022-10-17 10:36:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-17 10:36:29,280 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:29,288 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:29,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:36:29,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:29,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:29,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:29,517 INFO L85 PathProgramCache]: Analyzing trace with hash -177514462, now seen corresponding path program 1 times [2022-10-17 10:36:29,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:29,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067765548] [2022-10-17 10:36:29,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:29,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:36:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:36:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:36:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:36:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:36:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:36:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 10:36:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-17 10:36:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 10:36:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-17 10:36:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-17 10:36:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-17 10:36:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-17 10:36:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-17 10:36:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 10:36:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-17 10:36:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-17 10:36:29,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:29,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067765548] [2022-10-17 10:36:29,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067765548] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:36:29,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736619483] [2022-10-17 10:36:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:29,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:29,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:29,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:36:29,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:36:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:30,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:36:30,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:36:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-17 10:36:30,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:36:30,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736619483] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:30,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:36:30,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-17 10:36:30,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310738566] [2022-10-17 10:36:30,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:30,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:30,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:30,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:30,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:36:30,400 INFO L87 Difference]: Start difference. First operand 427 states and 641 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 10:36:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:30,483 INFO L93 Difference]: Finished difference Result 902 states and 1374 transitions. [2022-10-17 10:36:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:30,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 161 [2022-10-17 10:36:30,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:30,496 INFO L225 Difference]: With dead ends: 902 [2022-10-17 10:36:30,499 INFO L226 Difference]: Without dead ends: 502 [2022-10-17 10:36:30,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:36:30,505 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 134 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:36:30,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1254 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:36:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-10-17 10:36:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 494. [2022-10-17 10:36:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 384 states have (on average 1.5598958333333333) internal successors, (599), 388 states have internal predecessors, (599), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2022-10-17 10:36:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 758 transitions. [2022-10-17 10:36:30,571 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 758 transitions. Word has length 161 [2022-10-17 10:36:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:30,575 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 758 transitions. [2022-10-17 10:36:30,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-17 10:36:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 758 transitions. [2022-10-17 10:36:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-17 10:36:30,583 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:30,584 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:30,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:36:30,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:30,801 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:30,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:30,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2006264596, now seen corresponding path program 1 times [2022-10-17 10:36:30,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:30,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221554151] [2022-10-17 10:36:30,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:30,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:36:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:36:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:36:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:36:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:36:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:36:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:36:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 10:36:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:36:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 10:36:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-17 10:36:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-17 10:36:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-17 10:36:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-17 10:36:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-17 10:36:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-17 10:36:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,250 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-17 10:36:31,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:31,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221554151] [2022-10-17 10:36:31,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221554151] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:36:31,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312973160] [2022-10-17 10:36:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:31,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:31,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:31,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:36:31,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:36:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:36:31,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:36:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 10:36:31,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:36:31,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312973160] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:31,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:36:31,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-10-17 10:36:31,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659268782] [2022-10-17 10:36:31,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:31,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:36:31,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:31,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:36:31,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:36:31,762 INFO L87 Difference]: Start difference. First operand 494 states and 758 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 10:36:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:31,885 INFO L93 Difference]: Finished difference Result 979 states and 1506 transitions. [2022-10-17 10:36:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:36:31,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2022-10-17 10:36:31,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:31,893 INFO L225 Difference]: With dead ends: 979 [2022-10-17 10:36:31,893 INFO L226 Difference]: Without dead ends: 496 [2022-10-17 10:36:31,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:36:31,901 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 152 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2345 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 [2022-10-17 10:36:31,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2345 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:36:31,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-10-17 10:36:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2022-10-17 10:36:31,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 385 states have (on average 1.5584415584415585) internal successors, (600), 390 states have internal predecessors, (600), 80 states have call successors, (80), 29 states have call predecessors, (80), 30 states have return successors, (81), 78 states have call predecessors, (81), 79 states have call successors, (81) [2022-10-17 10:36:31,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 761 transitions. [2022-10-17 10:36:31,984 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 761 transitions. Word has length 162 [2022-10-17 10:36:31,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:31,985 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 761 transitions. [2022-10-17 10:36:31,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 10:36:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 761 transitions. [2022-10-17 10:36:31,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-17 10:36:31,992 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:31,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:32,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:36:32,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:32,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:32,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:32,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2049229177, now seen corresponding path program 1 times [2022-10-17 10:36:32,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:32,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817359652] [2022-10-17 10:36:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:32,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:36:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:36:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-17 10:36:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-17 10:36:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-17 10:36:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:36:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-17 10:36:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 10:36:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:36:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 10:36:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:36:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 10:36:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-17 10:36:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-17 10:36:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-17 10:36:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 10:36:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-17 10:36:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-17 10:36:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-17 10:36:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-17 10:36:32,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:32,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817359652] [2022-10-17 10:36:32,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817359652] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:36:32,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904853387] [2022-10-17 10:36:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:32,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:32,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:32,669 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:36:32,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:36:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:36:33,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:36:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 10:36:33,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:36:33,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904853387] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:33,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:36:33,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-10-17 10:36:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589175212] [2022-10-17 10:36:33,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:33,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:36:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:36:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:36:33,154 INFO L87 Difference]: Start difference. First operand 496 states and 761 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-10-17 10:36:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:33,255 INFO L93 Difference]: Finished difference Result 981 states and 1511 transitions. [2022-10-17 10:36:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:36:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 182 [2022-10-17 10:36:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:33,261 INFO L225 Difference]: With dead ends: 981 [2022-10-17 10:36:33,261 INFO L226 Difference]: Without dead ends: 498 [2022-10-17 10:36:33,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:36:33,265 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 151 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:36:33,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2334 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:36:33,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-10-17 10:36:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2022-10-17 10:36:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 386 states have (on average 1.5569948186528497) internal successors, (601), 392 states have internal predecessors, (601), 80 states have call successors, (80), 29 states have call predecessors, (80), 31 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-10-17 10:36:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 767 transitions. [2022-10-17 10:36:33,302 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 767 transitions. Word has length 182 [2022-10-17 10:36:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:33,303 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 767 transitions. [2022-10-17 10:36:33,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-10-17 10:36:33,303 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 767 transitions. [2022-10-17 10:36:33,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-17 10:36:33,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:33,309 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:33,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:36:33,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb9dc00-f65b-445d-95f6-0d49654467dd/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:36:33,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:33,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:33,537 INFO L85 PathProgramCache]: Analyzing trace with hash -911483783, now seen corresponding path program 1 times [2022-10-17 10:36:33,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:33,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380234363] [2022-10-17 10:36:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:36:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:36:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:36:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-17 10:36:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-17 10:36:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:36:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:36:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:36:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-17 10:36:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-17 10:36:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:36:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-17 10:36:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 10:36:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-17 10:36:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-17 10:36:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-17 10:36:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-17 10:36:33,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:33,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380234363] [2022-10-17 10:36:33,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380234363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:33,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:33,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:36:33,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909326801] [2022-10-17 10:36:33,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:33,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:36:33,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:33,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:36:33,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:36:33,888 INFO L87 Difference]: Start difference. First operand 498 states and 767 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 10:36:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:36,848 INFO L93 Difference]: Finished difference Result 1109 states and 1730 transitions. [2022-10-17 10:36:36,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:36:36,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 164 [2022-10-17 10:36:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:36,856 INFO L225 Difference]: With dead ends: 1109 [2022-10-17 10:36:36,856 INFO L226 Difference]: Without dead ends: 634 [2022-10-17 10:36:36,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:36:36,860 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 1679 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:36:36,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 1648 Invalid, 2816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-17 10:36:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-10-17 10:36:36,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 498. [2022-10-17 10:36:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 386 states have (on average 1.5569948186528497) internal successors, (601), 392 states have internal predecessors, (601), 80 states have call successors, (80), 29 states have call predecessors, (80), 31 states have return successors, (85), 78 states have call predecessors, (85), 79 states have call successors, (85) [2022-10-17 10:36:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 766 transitions. [2022-10-17 10:36:36,936 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 766 transitions. Word has length 164 [2022-10-17 10:36:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:36,937 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 766 transitions. [2022-10-17 10:36:36,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 10:36:36,938 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 766 transitions. [2022-10-17 10:36:36,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-10-17 10:36:36,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:36,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:36,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:36:36,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:36,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:36,944 INFO L85 PathProgramCache]: Analyzing trace with hash -432917155, now seen corresponding path program 2 times [2022-10-17 10:36:36,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:36,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132048951] [2022-10-17 10:36:36,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:36,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:36:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:36:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-17 10:36:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:36:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:36:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:36:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:36:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 10:36:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:36:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:36:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 10:36:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-17 10:36:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-17 10:36:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-17 10:36:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 10:36:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-17 10:36:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,328 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-10-17 10:36:37,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:37,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132048951] [2022-10-17 10:36:37,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132048951] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:37,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:37,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:36:37,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720437798] [2022-10-17 10:36:37,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:37,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:36:37,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:37,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:36:37,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:36:37,332 INFO L87 Difference]: Start difference. First operand 498 states and 766 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 10:36:40,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:40,141 INFO L93 Difference]: Finished difference Result 1111 states and 1733 transitions. [2022-10-17 10:36:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:36:40,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 165 [2022-10-17 10:36:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:40,150 INFO L225 Difference]: With dead ends: 1111 [2022-10-17 10:36:40,150 INFO L226 Difference]: Without dead ends: 636 [2022-10-17 10:36:40,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:36:40,157 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 1627 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:36:40,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 1668 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-17 10:36:40,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-10-17 10:36:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 500. [2022-10-17 10:36:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 387 states have (on average 1.5555555555555556) internal successors, (602), 394 states have internal predecessors, (602), 80 states have call successors, (80), 29 states have call predecessors, (80), 32 states have return successors, (87), 78 states have call predecessors, (87), 79 states have call successors, (87) [2022-10-17 10:36:40,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 769 transitions. [2022-10-17 10:36:40,223 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 769 transitions. Word has length 165 [2022-10-17 10:36:40,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:40,224 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 769 transitions. [2022-10-17 10:36:40,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 10:36:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 769 transitions. [2022-10-17 10:36:40,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-17 10:36:40,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:40,230 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:40,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:36:40,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:40,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1058163092, now seen corresponding path program 1 times [2022-10-17 10:36:40,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:40,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557848871] [2022-10-17 10:36:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:40,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:36:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:36:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:36:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:36:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:36:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:36:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:36:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:36:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 10:36:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-17 10:36:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 10:36:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 10:36:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 10:36:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-17 10:36:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-17 10:36:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-17 10:36:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-17 10:36:40,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:40,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557848871] [2022-10-17 10:36:40,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557848871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:40,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:40,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:36:40,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512093599] [2022-10-17 10:36:40,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:40,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:36:40,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:40,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:36:40,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:36:40,656 INFO L87 Difference]: Start difference. First operand 500 states and 769 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2022-10-17 10:36:44,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:44,406 INFO L93 Difference]: Finished difference Result 1109 states and 1728 transitions. [2022-10-17 10:36:44,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:36:44,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 166 [2022-10-17 10:36:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:44,415 INFO L225 Difference]: With dead ends: 1109 [2022-10-17 10:36:44,416 INFO L226 Difference]: Without dead ends: 636 [2022-10-17 10:36:44,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:36:44,419 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 1788 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4127 mSolverCounterSat, 644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 4127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:36:44,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1788 Valid, 2017 Invalid, 4771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 4127 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-17 10:36:44,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-10-17 10:36:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 500. [2022-10-17 10:36:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 387 states have (on average 1.5555555555555556) internal successors, (602), 394 states have internal predecessors, (602), 80 states have call successors, (80), 29 states have call predecessors, (80), 32 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2022-10-17 10:36:44,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 768 transitions. [2022-10-17 10:36:44,486 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 768 transitions. Word has length 166 [2022-10-17 10:36:44,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:44,487 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 768 transitions. [2022-10-17 10:36:44,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2022-10-17 10:36:44,487 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 768 transitions. [2022-10-17 10:36:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-17 10:36:44,492 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:44,492 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:44,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:36:44,493 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:44,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:44,493 INFO L85 PathProgramCache]: Analyzing trace with hash 163546379, now seen corresponding path program 2 times [2022-10-17 10:36:44,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:44,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143722535] [2022-10-17 10:36:44,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:44,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:36:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:36:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:36:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:36:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:36:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 10:36:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-17 10:36:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 10:36:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 10:36:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-17 10:36:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-17 10:36:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-17 10:36:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-17 10:36:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:36:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-17 10:36:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-17 10:36:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-10-17 10:36:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:44,868 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-17 10:36:44,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:44,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143722535] [2022-10-17 10:36:44,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143722535] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:44,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:44,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:36:44,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206025364] [2022-10-17 10:36:44,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:44,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:36:44,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:44,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:36:44,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:36:44,872 INFO L87 Difference]: Start difference. First operand 500 states and 768 transitions. Second operand has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2022-10-17 10:36:48,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:36:48,635 INFO L93 Difference]: Finished difference Result 1111 states and 1734 transitions. [2022-10-17 10:36:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:36:48,636 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 167 [2022-10-17 10:36:48,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:36:48,643 INFO L225 Difference]: With dead ends: 1111 [2022-10-17 10:36:48,643 INFO L226 Difference]: Without dead ends: 638 [2022-10-17 10:36:48,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:36:48,649 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 1731 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4257 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 4907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 4257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:36:48,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 2039 Invalid, 4907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 4257 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-17 10:36:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-10-17 10:36:48,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 502. [2022-10-17 10:36:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 388 states have (on average 1.5541237113402062) internal successors, (603), 396 states have internal predecessors, (603), 80 states have call successors, (80), 29 states have call predecessors, (80), 33 states have return successors, (91), 78 states have call predecessors, (91), 79 states have call successors, (91) [2022-10-17 10:36:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 774 transitions. [2022-10-17 10:36:48,722 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 774 transitions. Word has length 167 [2022-10-17 10:36:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:36:48,724 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 774 transitions. [2022-10-17 10:36:48,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2022-10-17 10:36:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 774 transitions. [2022-10-17 10:36:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-10-17 10:36:48,730 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:36:48,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:48,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:36:48,731 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:36:48,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:48,731 INFO L85 PathProgramCache]: Analyzing trace with hash 567826767, now seen corresponding path program 1 times [2022-10-17 10:36:48,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:48,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672832174] [2022-10-17 10:36:48,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:48,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:49,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:36:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:49,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:36:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:49,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:36:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:49,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:36:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat