./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro --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 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f --- 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-8393723 [2022-11-18 20:48:11,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:48:11,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:48:11,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:48:11,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:48:11,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:48:11,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:48:11,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:48:11,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:48:11,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:48:11,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:48:11,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:48:11,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:48:11,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:48:11,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:48:11,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:48:11,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:48:11,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:48:11,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:48:11,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:48:11,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:48:11,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:48:11,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:48:11,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:48:11,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:48:11,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:48:11,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:48:11,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:48:11,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:48:11,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:48:11,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:48:11,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:48:11,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:48:11,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:48:11,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:48:11,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:48:11,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:48:11,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:48:11,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:48:11,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:48:11,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:48:11,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:48:11,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:48:11,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:48:11,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:48:11,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:48:11,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:48:11,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:48:11,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:48:11,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:48:11,899 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:48:11,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:48:11,900 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:48:11,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:48:11,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:48:11,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:48:11,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:48:11,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:48:11,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:48:11,902 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:48:11,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:48:11,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:48:11,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:48:11,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:48:11,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:48:11,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:48:11,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:11,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:48:11,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:48:11,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:48:11,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:48:11,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:48:11,907 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:48:11,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:48:11,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:48:11,908 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_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f [2022-11-18 20:48:12,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:48:12,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:48:12,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:48:12,320 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:48:12,321 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:48:12,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-11-18 20:48:12,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/data/09702e497/b842adb4d78849c18172219b7295b54b/FLAG1e45ef985 [2022-11-18 20:48:13,080 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:48:13,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-11-18 20:48:13,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/data/09702e497/b842adb4d78849c18172219b7295b54b/FLAG1e45ef985 [2022-11-18 20:48:13,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/data/09702e497/b842adb4d78849c18172219b7295b54b [2022-11-18 20:48:13,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:48:13,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:48:13,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:13,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:48:13,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:48:13,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:13" (1/1) ... [2022-11-18 20:48:13,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58926791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:13, skipping insertion in model container [2022-11-18 20:48:13,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:13" (1/1) ... [2022-11-18 20:48:13,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:48:13,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:48:13,908 WARN L234 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_a0259ff6-41c7-4433-b0cd-938af91630c5/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-11-18 20:48:14,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:14,056 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:48:14,160 WARN L234 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_a0259ff6-41c7-4433-b0cd-938af91630c5/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-11-18 20:48:14,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:14,275 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:48:14,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14 WrapperNode [2022-11-18 20:48:14,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:14,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:14,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:48:14,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:48:14,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,395 INFO L138 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1125 [2022-11-18 20:48:14,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:14,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:48:14,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:48:14,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:48:14,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,468 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:48:14,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:48:14,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:48:14,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:48:14,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:14,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:14,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:48:14,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:48:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-18 20:48:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-18 20:48:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-18 20:48:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-18 20:48:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-18 20:48:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-18 20:48:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-18 20:48:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-18 20:48:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-18 20:48:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-18 20:48:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-18 20:48:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-18 20:48:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-18 20:48:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-18 20:48:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-18 20:48:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-18 20:48:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-18 20:48:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-18 20:48:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-18 20:48:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-18 20:48:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-18 20:48:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-18 20:48:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-18 20:48:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-18 20:48:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-18 20:48:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:48:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-18 20:48:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-18 20:48:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-18 20:48:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-18 20:48:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-18 20:48:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-18 20:48:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-18 20:48:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-18 20:48:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-18 20:48:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-18 20:48:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-18 20:48:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-18 20:48:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-18 20:48:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-18 20:48:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-18 20:48:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-18 20:48:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:48:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-18 20:48:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-18 20:48:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-18 20:48:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-18 20:48:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:48:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:48:14,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:48:14,871 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:48:16,165 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:48:16,188 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:48:16,189 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:48:16,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:16 BoogieIcfgContainer [2022-11-18 20:48:16,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:48:16,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:48:16,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:48:16,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:48:16,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:48:13" (1/3) ... [2022-11-18 20:48:16,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733d477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:16, skipping insertion in model container [2022-11-18 20:48:16,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (2/3) ... [2022-11-18 20:48:16,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733d477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:16, skipping insertion in model container [2022-11-18 20:48:16,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:16" (3/3) ... [2022-11-18 20:48:16,204 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product27.cil.c [2022-11-18 20:48:16,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:48:16,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:48:16,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:48:16,340 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;@7e3841f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:48:16,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:48:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-18 20:48:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 20:48:16,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:16,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:16,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2076588138, now seen corresponding path program 1 times [2022-11-18 20:48:16,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:16,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238845753] [2022-11-18 20:48:16,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:16,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:48:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:48:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:48:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 20:48:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:48:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:48:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:48:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:48:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:48:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 20:48:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,236 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:48:17,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:17,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238845753] [2022-11-18 20:48:17,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238845753] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:17,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854721572] [2022-11-18 20:48:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:17,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:17,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:17,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:17,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:48:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:48:17,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 20:48:17,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:17,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854721572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:17,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:17,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-18 20:48:17,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990059831] [2022-11-18 20:48:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:17,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:48:17,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:17,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:48:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:48:17,788 INFO L87 Difference]: Start difference. First operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:17,889 INFO L93 Difference]: Finished difference Result 598 states and 904 transitions. [2022-11-18 20:48:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:48:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2022-11-18 20:48:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:17,909 INFO L225 Difference]: With dead ends: 598 [2022-11-18 20:48:17,909 INFO L226 Difference]: Without dead ends: 391 [2022-11-18 20:48:17,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:48:17,919 INFO L413 NwaCegarLoop]: 607 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, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:17,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:17,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-18 20:48:17,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2022-11-18 20:48:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 310 states have (on average 1.5612903225806452) internal successors, (484), 312 states have internal predecessors, (484), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-18 20:48:18,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 599 transitions. [2022-11-18 20:48:18,006 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 599 transitions. Word has length 107 [2022-11-18 20:48:18,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:18,008 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 599 transitions. [2022-11-18 20:48:18,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 599 transitions. [2022-11-18 20:48:18,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-18 20:48:18,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:18,014 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:18,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:18,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:18,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash -631712386, now seen corresponding path program 1 times [2022-11-18 20:48:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:18,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130942302] [2022-11-18 20:48:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:18,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:48:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:48:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:48:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 20:48:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 20:48:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:48:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:48:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 20:48:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:48:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 20:48:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:48:18,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:18,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130942302] [2022-11-18 20:48:18,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130942302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:18,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115946719] [2022-11-18 20:48:18,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:18,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:18,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:18,787 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:18,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:48:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:48:19,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 20:48:19,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:19,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115946719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:19,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:19,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-18 20:48:19,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902838807] [2022-11-18 20:48:19,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:19,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:48:19,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:19,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:48:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:48:19,211 INFO L87 Difference]: Start difference. First operand 391 states and 599 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:19,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:19,279 INFO L93 Difference]: Finished difference Result 588 states and 882 transitions. [2022-11-18 20:48:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:48:19,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-11-18 20:48:19,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:19,285 INFO L225 Difference]: With dead ends: 588 [2022-11-18 20:48:19,285 INFO L226 Difference]: Without dead ends: 394 [2022-11-18 20:48:19,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:48:19,302 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:19,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-18 20:48:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 393. [2022-11-18 20:48:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 312 states have (on average 1.5576923076923077) internal successors, (486), 314 states have internal predecessors, (486), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-18 20:48:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2022-11-18 20:48:19,368 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 108 [2022-11-18 20:48:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:19,368 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2022-11-18 20:48:19,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2022-11-18 20:48:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-18 20:48:19,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:19,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:19,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:19,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:19,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:19,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:19,589 INFO L85 PathProgramCache]: Analyzing trace with hash -234820301, now seen corresponding path program 1 times [2022-11-18 20:48:19,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:19,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162450371] [2022-11-18 20:48:19,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:19,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:48:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:48:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:48:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:48:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:48:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:48:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:48:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:48:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:48:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 20:48:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:48:19,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:19,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162450371] [2022-11-18 20:48:19,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162450371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:19,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749726402] [2022-11-18 20:48:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:19,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:19,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:19,955 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:19,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:48:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:20,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:48:20,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 20:48:20,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:20,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749726402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:20,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:20,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-18 20:48:20,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691310620] [2022-11-18 20:48:20,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:20,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:48:20,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:20,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:48:20,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:48:20,351 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:20,452 INFO L93 Difference]: Finished difference Result 839 states and 1302 transitions. [2022-11-18 20:48:20,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:48:20,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2022-11-18 20:48:20,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:20,467 INFO L225 Difference]: With dead ends: 839 [2022-11-18 20:48:20,467 INFO L226 Difference]: Without dead ends: 473 [2022-11-18 20:48:20,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:48:20,470 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 142 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:20,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1177 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:20,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-18 20:48:20,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 465. [2022-11-18 20:48:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 370 states have (on average 1.5756756756756756) internal successors, (583), 372 states have internal predecessors, (583), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-18 20:48:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 726 transitions. [2022-11-18 20:48:20,552 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 726 transitions. Word has length 117 [2022-11-18 20:48:20,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:20,553 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 726 transitions. [2022-11-18 20:48:20,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:20,553 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 726 transitions. [2022-11-18 20:48:20,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-18 20:48:20,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:20,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:20,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:20,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:20,773 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:20,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1444038165, now seen corresponding path program 1 times [2022-11-18 20:48:20,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:20,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494634524] [2022-11-18 20:48:20,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:20,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:20,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:20,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:48:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:48:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:48:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:48:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:48:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:48:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:48:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:48:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 20:48:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 20:48:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,069 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:48:21,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:21,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494634524] [2022-11-18 20:48:21,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494634524] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:21,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128720062] [2022-11-18 20:48:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:21,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:21,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:21,071 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:21,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:48:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:21,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:48:21,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:48:21,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:21,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128720062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:21,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:21,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-18 20:48:21,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767885425] [2022-11-18 20:48:21,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:21,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:48:21,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:21,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:48:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:48:21,532 INFO L87 Difference]: Start difference. First operand 465 states and 726 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:21,649 INFO L93 Difference]: Finished difference Result 921 states and 1442 transitions. [2022-11-18 20:48:21,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:48:21,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2022-11-18 20:48:21,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:21,656 INFO L225 Difference]: With dead ends: 921 [2022-11-18 20:48:21,656 INFO L226 Difference]: Without dead ends: 467 [2022-11-18 20:48:21,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:48:21,665 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 160 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:21,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:21,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-18 20:48:21,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-11-18 20:48:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 371 states have (on average 1.5741239892183287) internal successors, (584), 374 states have internal predecessors, (584), 72 states have call successors, (72), 22 states have call predecessors, (72), 23 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2022-11-18 20:48:21,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 729 transitions. [2022-11-18 20:48:21,717 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 729 transitions. Word has length 118 [2022-11-18 20:48:21,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:21,718 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 729 transitions. [2022-11-18 20:48:21,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:21,718 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 729 transitions. [2022-11-18 20:48:21,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-18 20:48:21,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:21,729 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:21,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:21,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:21,937 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:21,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:21,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1777333829, now seen corresponding path program 1 times [2022-11-18 20:48:21,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:21,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145209049] [2022-11-18 20:48:21,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:21,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 20:48:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:48:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:48:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:48:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:48:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:48:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:48:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 20:48:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 20:48:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:48:22,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:22,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145209049] [2022-11-18 20:48:22,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145209049] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:22,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817077307] [2022-11-18 20:48:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:22,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:22,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:22,325 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:22,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:48:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:22,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:48:22,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:48:22,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:22,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817077307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:22,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:22,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-18 20:48:22,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679884211] [2022-11-18 20:48:22,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:22,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:48:22,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:48:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:48:22,748 INFO L87 Difference]: Start difference. First operand 467 states and 729 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:22,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:22,838 INFO L93 Difference]: Finished difference Result 923 states and 1447 transitions. [2022-11-18 20:48:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:48:22,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2022-11-18 20:48:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:22,843 INFO L225 Difference]: With dead ends: 923 [2022-11-18 20:48:22,843 INFO L226 Difference]: Without dead ends: 469 [2022-11-18 20:48:22,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:48:22,846 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 159 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:22,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-18 20:48:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-11-18 20:48:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-11-18 20:48:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 735 transitions. [2022-11-18 20:48:22,875 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 735 transitions. Word has length 119 [2022-11-18 20:48:22,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:22,876 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 735 transitions. [2022-11-18 20:48:22,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 735 transitions. [2022-11-18 20:48:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-18 20:48:22,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:22,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-18 20:48:22,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 20:48:23,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:23,088 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:23,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:23,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1938958555, now seen corresponding path program 1 times [2022-11-18 20:48:23,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:23,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227055098] [2022-11-18 20:48:23,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:23,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:48:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:48:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:48:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 20:48:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:48:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:48:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 20:48:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:48:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:48:23,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:23,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227055098] [2022-11-18 20:48:23,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227055098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:23,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:23,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:48:23,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4739385] [2022-11-18 20:48:23,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:23,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:48:23,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:23,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:48:23,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:48:23,393 INFO L87 Difference]: Start difference. First operand 469 states and 735 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:26,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:26,726 INFO L93 Difference]: Finished difference Result 1119 states and 1783 transitions. [2022-11-18 20:48:26,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:48:26,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2022-11-18 20:48:26,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:26,734 INFO L225 Difference]: With dead ends: 1119 [2022-11-18 20:48:26,735 INFO L226 Difference]: Without dead ends: 673 [2022-11-18 20:48:26,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:48:26,740 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1501 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:26,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1248 Invalid, 3703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [561 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-18 20:48:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-18 20:48:26,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 469. [2022-11-18 20:48:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2022-11-18 20:48:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 734 transitions. [2022-11-18 20:48:26,820 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 734 transitions. Word has length 120 [2022-11-18 20:48:26,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:26,822 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 734 transitions. [2022-11-18 20:48:26,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 734 transitions. [2022-11-18 20:48:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-18 20:48:26,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:26,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-18 20:48:26,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:48:26,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:26,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1280623071, now seen corresponding path program 2 times [2022-11-18 20:48:26,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:26,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256928828] [2022-11-18 20:48:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:26,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:48:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 20:48:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:48:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:48:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 20:48:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:48:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:48:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:48:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 20:48:27,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:27,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256928828] [2022-11-18 20:48:27,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256928828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:27,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:27,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:48:27,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486778946] [2022-11-18 20:48:27,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:27,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:48:27,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:27,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:48:27,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:48:27,154 INFO L87 Difference]: Start difference. First operand 469 states and 734 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:30,538 INFO L93 Difference]: Finished difference Result 1121 states and 1786 transitions. [2022-11-18 20:48:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:48:30,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2022-11-18 20:48:30,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:30,544 INFO L225 Difference]: With dead ends: 1121 [2022-11-18 20:48:30,544 INFO L226 Difference]: Without dead ends: 675 [2022-11-18 20:48:30,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:48:30,547 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1496 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3163 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 3163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:30,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1248 Invalid, 3718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 3163 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-18 20:48:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-18 20:48:30,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 471. [2022-11-18 20:48:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2022-11-18 20:48:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2022-11-18 20:48:30,604 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 121 [2022-11-18 20:48:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:30,604 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2022-11-18 20:48:30,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-18 20:48:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2022-11-18 20:48:30,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-18 20:48:30,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:30,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-18 20:48:30,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:48:30,608 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:30,609 INFO L85 PathProgramCache]: Analyzing trace with hash -801045568, now seen corresponding path program 1 times [2022-11-18 20:48:30,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:30,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47287012] [2022-11-18 20:48:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:30,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:48:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:48:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:48:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:48:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:48:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 20:48:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:30,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 20:48:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:48:31,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:31,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47287012] [2022-11-18 20:48:31,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47287012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:31,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:31,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:48:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303151449] [2022-11-18 20:48:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:31,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:48:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:48:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:48:31,009 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 20:48:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:35,415 INFO L93 Difference]: Finished difference Result 1119 states and 1781 transitions. [2022-11-18 20:48:35,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:48:35,416 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 122 [2022-11-18 20:48:35,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:35,421 INFO L225 Difference]: With dead ends: 1119 [2022-11-18 20:48:35,421 INFO L226 Difference]: Without dead ends: 675 [2022-11-18 20:48:35,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:48:35,425 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1652 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5225 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 5225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:35,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1629 Invalid, 5825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [600 Valid, 5225 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-18 20:48:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-18 20:48:35,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 471. [2022-11-18 20:48:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-11-18 20:48:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2022-11-18 20:48:35,481 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 122 [2022-11-18 20:48:35,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:35,482 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2022-11-18 20:48:35,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 20:48:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2022-11-18 20:48:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-18 20:48:35,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:35,486 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-18 20:48:35,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:48:35,487 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:35,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash 554235044, now seen corresponding path program 2 times [2022-11-18 20:48:35,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:35,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968177719] [2022-11-18 20:48:35,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:35,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:48:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:48:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:48:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:48:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:48:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:48:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 20:48:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:35,807 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:48:35,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:35,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968177719] [2022-11-18 20:48:35,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968177719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:35,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:35,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:48:35,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431073227] [2022-11-18 20:48:35,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:35,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:48:35,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:35,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:48:35,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:48:35,810 INFO L87 Difference]: Start difference. First operand 471 states and 736 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 20:48:39,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:39,997 INFO L93 Difference]: Finished difference Result 1121 states and 1787 transitions. [2022-11-18 20:48:39,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:48:39,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2022-11-18 20:48:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:40,003 INFO L225 Difference]: With dead ends: 1121 [2022-11-18 20:48:40,003 INFO L226 Difference]: Without dead ends: 677 [2022-11-18 20:48:40,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:48:40,006 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1649 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5245 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 5842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 5245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:40,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 1628 Invalid, 5842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [597 Valid, 5245 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-18 20:48:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-11-18 20:48:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 473. [2022-11-18 20:48:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 374 states have (on average 1.5695187165775402) internal successors, (587), 380 states have internal predecessors, (587), 72 states have call successors, (72), 22 states have call predecessors, (72), 26 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2022-11-18 20:48:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 742 transitions. [2022-11-18 20:48:40,079 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 742 transitions. Word has length 123 [2022-11-18 20:48:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:40,079 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 742 transitions. [2022-11-18 20:48:40,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 20:48:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 742 transitions. [2022-11-18 20:48:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-18 20:48:40,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:40,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-18 20:48:40,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:48:40,083 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1056972187, now seen corresponding path program 1 times [2022-11-18 20:48:40,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:40,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875853324] [2022-11-18 20:48:40,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:40,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:48:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:48:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:48:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:48:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 20:48:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 20:48:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 20:48:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 20:48:40,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:40,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875853324] [2022-11-18 20:48:40,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875853324] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:40,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880931282] [2022-11-18 20:48:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:40,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:40,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:40,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:48:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:48:40,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:48:40,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:48:40,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880931282] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:40,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:40,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-18 20:48:40,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758002618] [2022-11-18 20:48:40,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:40,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:48:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:40,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:48:40,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:48:40,887 INFO L87 Difference]: Start difference. First operand 473 states and 742 transitions. Second operand has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 20:48:46,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:46,280 INFO L93 Difference]: Finished difference Result 2030 states and 3425 transitions. [2022-11-18 20:48:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:48:46,281 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 124 [2022-11-18 20:48:46,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:46,302 INFO L225 Difference]: With dead ends: 2030 [2022-11-18 20:48:46,303 INFO L226 Difference]: Without dead ends: 1588 [2022-11-18 20:48:46,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:48:46,308 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 4436 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 6029 mSolverCounterSat, 1642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4438 SdHoareTripleChecker+Valid, 4117 SdHoareTripleChecker+Invalid, 7671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1642 IncrementalHoareTripleChecker+Valid, 6029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:46,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4438 Valid, 4117 Invalid, 7671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1642 Valid, 6029 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-18 20:48:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2022-11-18 20:48:46,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 916. [2022-11-18 20:48:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 738 states have (on average 1.6165311653116532) internal successors, (1193), 744 states have internal predecessors, (1193), 151 states have call successors, (151), 22 states have call predecessors, (151), 26 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2022-11-18 20:48:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1516 transitions. [2022-11-18 20:48:46,431 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1516 transitions. Word has length 124 [2022-11-18 20:48:46,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:46,432 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1516 transitions. [2022-11-18 20:48:46,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-18 20:48:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1516 transitions. [2022-11-18 20:48:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:48:46,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:46,438 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:46,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:46,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0259ff6-41c7-4433-b0cd-938af91630c5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:48:46,646 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:46,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1032995972, now seen corresponding path program 1 times [2022-11-18 20:48:46,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:46,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664342890] [2022-11-18 20:48:46,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:46,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:48:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 20:48:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 20:48:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 20:48:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:48:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 20:48:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 20:48:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:48:46,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:46,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664342890] [2022-11-18 20:48:46,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664342890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:46,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:46,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:48:46,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336548637] [2022-11-18 20:48:46,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:46,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:48:46,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:46,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:48:46,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:48:46,811 INFO L87 Difference]: Start difference. First operand 916 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:49,294 INFO L93 Difference]: Finished difference Result 2381 states and 4033 transitions. [2022-11-18 20:48:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:48:49,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-11-18 20:48:49,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:49,306 INFO L225 Difference]: With dead ends: 2381 [2022-11-18 20:48:49,306 INFO L226 Difference]: Without dead ends: 1543 [2022-11-18 20:48:49,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:48:49,310 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1479 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:49,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1062 Invalid, 2531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:48:49,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-11-18 20:48:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1331. [2022-11-18 20:48:49,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1074 states have (on average 1.632216014897579) internal successors, (1753), 1080 states have internal predecessors, (1753), 230 states have call successors, (230), 22 states have call predecessors, (230), 26 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2022-11-18 20:48:49,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2244 transitions. [2022-11-18 20:48:49,474 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2244 transitions. Word has length 127 [2022-11-18 20:48:49,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:49,475 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 2244 transitions. [2022-11-18 20:48:49,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:49,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2244 transitions. [2022-11-18 20:48:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-18 20:48:49,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:49,484 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:49,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:48:49,484 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:49,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:49,485 INFO L85 PathProgramCache]: Analyzing trace with hash -534050665, now seen corresponding path program 1 times [2022-11-18 20:48:49,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:49,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200983886] [2022-11-18 20:48:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:49,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:48:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:48:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:48:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:48:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 20:48:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 20:48:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 20:48:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:48:49,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:49,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200983886] [2022-11-18 20:48:49,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200983886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:49,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:49,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:48:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334625367] [2022-11-18 20:48:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:49,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:48:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:48:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:48:49,656 INFO L87 Difference]: Start difference. First operand 1331 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:52,292 INFO L93 Difference]: Finished difference Result 3420 states and 5846 transitions. [2022-11-18 20:48:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:48:52,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-11-18 20:48:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:52,307 INFO L225 Difference]: With dead ends: 3420 [2022-11-18 20:48:52,308 INFO L226 Difference]: Without dead ends: 2220 [2022-11-18 20:48:52,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:48:52,313 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1477 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:52,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1045 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 20:48:52,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2022-11-18 20:48:52,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2008. [2022-11-18 20:48:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1632 states have (on average 1.639093137254902) internal successors, (2675), 1638 states have internal predecessors, (2675), 349 states have call successors, (349), 22 states have call predecessors, (349), 26 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2022-11-18 20:48:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 3404 transitions. [2022-11-18 20:48:52,594 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 3404 transitions. Word has length 128 [2022-11-18 20:48:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:52,594 INFO L495 AbstractCegarLoop]: Abstraction has 2008 states and 3404 transitions. [2022-11-18 20:48:52,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 3404 transitions. [2022-11-18 20:48:52,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-18 20:48:52,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:52,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:52,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:48:52,606 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:52,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:52,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1223020714, now seen corresponding path program 1 times [2022-11-18 20:48:52,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:52,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209097213] [2022-11-18 20:48:52,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:52,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:48:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:48:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:48:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:48:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:48:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 20:48:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 20:48:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:48:52,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:52,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209097213] [2022-11-18 20:48:52,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209097213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:52,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:52,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:48:52,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051631050] [2022-11-18 20:48:52,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:52,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:48:52,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:52,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:48:52,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:48:52,763 INFO L87 Difference]: Start difference. First operand 2008 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:55,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:55,453 INFO L93 Difference]: Finished difference Result 5005 states and 8625 transitions. [2022-11-18 20:48:55,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:48:55,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-11-18 20:48:55,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:55,473 INFO L225 Difference]: With dead ends: 5005 [2022-11-18 20:48:55,473 INFO L226 Difference]: Without dead ends: 3263 [2022-11-18 20:48:55,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:48:55,481 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1475 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:55,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1042 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:48:55,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2022-11-18 20:48:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 3051. [2022-11-18 20:48:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 2513 states have (on average 1.6446478312773578) internal successors, (4133), 2519 states have internal predecessors, (4133), 511 states have call successors, (511), 22 states have call predecessors, (511), 26 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2022-11-18 20:48:55,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 5202 transitions. [2022-11-18 20:48:55,870 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 5202 transitions. Word has length 129 [2022-11-18 20:48:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:55,870 INFO L495 AbstractCegarLoop]: Abstraction has 3051 states and 5202 transitions. [2022-11-18 20:48:55,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 5202 transitions. [2022-11-18 20:48:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-18 20:48:55,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:55,885 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:55,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:48:55,885 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:55,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:55,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1804521560, now seen corresponding path program 1 times [2022-11-18 20:48:55,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:55,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056712388] [2022-11-18 20:48:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:55,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:55,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:55,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:55,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:55,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:48:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:56,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:48:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:56,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:48:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:56,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 20:48:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 20:48:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:56,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 20:48:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:56,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 20:48:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:48:56,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:56,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056712388] [2022-11-18 20:48:56,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056712388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:56,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:56,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:48:56,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173598905] [2022-11-18 20:48:56,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:56,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:48:56,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:56,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:48:56,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:48:56,018 INFO L87 Difference]: Start difference. First operand 3051 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:58,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:58,793 INFO L93 Difference]: Finished difference Result 7519 states and 13040 transitions. [2022-11-18 20:48:58,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:48:58,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-11-18 20:48:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:58,818 INFO L225 Difference]: With dead ends: 7519 [2022-11-18 20:48:58,819 INFO L226 Difference]: Without dead ends: 4953 [2022-11-18 20:48:58,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:48:58,827 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1470 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:58,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1042 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:48:58,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2022-11-18 20:48:59,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 4741. [2022-11-18 20:48:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 3958 states have (on average 1.6485598787266296) internal successors, (6525), 3964 states have internal predecessors, (6525), 756 states have call successors, (756), 22 states have call predecessors, (756), 26 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2022-11-18 20:48:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 8110 transitions. [2022-11-18 20:48:59,540 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 8110 transitions. Word has length 130 [2022-11-18 20:48:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:59,541 INFO L495 AbstractCegarLoop]: Abstraction has 4741 states and 8110 transitions. [2022-11-18 20:48:59,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:48:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 8110 transitions. [2022-11-18 20:48:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-18 20:48:59,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:59,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:59,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:48:59,568 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1236037510, now seen corresponding path program 1 times [2022-11-18 20:48:59,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:59,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542988746] [2022-11-18 20:48:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:59,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:48:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:48:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:48:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:48:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:48:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:48:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 20:48:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:48:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:48:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 20:48:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 20:48:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-18 20:48:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 20:48:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:48:59,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:59,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542988746] [2022-11-18 20:48:59,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542988746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:59,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:59,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:48:59,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133512460] [2022-11-18 20:48:59,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:59,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:48:59,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:59,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:48:59,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:48:59,710 INFO L87 Difference]: Start difference. First operand 4741 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:02,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:02,849 INFO L93 Difference]: Finished difference Result 11720 states and 20417 transitions. [2022-11-18 20:49:02,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:49:02,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2022-11-18 20:49:02,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:02,897 INFO L225 Difference]: With dead ends: 11720 [2022-11-18 20:49:02,897 INFO L226 Difference]: Without dead ends: 7796 [2022-11-18 20:49:02,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:49:02,912 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1470 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:02,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1064 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:49:02,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2022-11-18 20:49:03,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 7584. [2022-11-18 20:49:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 6308 states have (on average 1.6461636017755232) internal successors, (10384), 6314 states have internal predecessors, (10384), 1249 states have call successors, (1249), 22 states have call predecessors, (1249), 26 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2022-11-18 20:49:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 12999 transitions. [2022-11-18 20:49:03,987 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 12999 transitions. Word has length 131 [2022-11-18 20:49:03,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:03,988 INFO L495 AbstractCegarLoop]: Abstraction has 7584 states and 12999 transitions. [2022-11-18 20:49:03,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 12999 transitions. [2022-11-18 20:49:04,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-18 20:49:04,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:04,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:04,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:49:04,013 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1439988092, now seen corresponding path program 1 times [2022-11-18 20:49:04,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:04,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389872628] [2022-11-18 20:49:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:04,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:49:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:49:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:49:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:49:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:49:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:49:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 20:49:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:49:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 20:49:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 20:49:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:49:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:49:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 20:49:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:49:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:04,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389872628] [2022-11-18 20:49:04,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389872628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:04,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:04,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:49:04,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381818650] [2022-11-18 20:49:04,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:49:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:49:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:49:04,198 INFO L87 Difference]: Start difference. First operand 7584 states and 12999 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:07,678 INFO L93 Difference]: Finished difference Result 19335 states and 33693 transitions. [2022-11-18 20:49:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:49:07,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2022-11-18 20:49:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:07,735 INFO L225 Difference]: With dead ends: 19335 [2022-11-18 20:49:07,735 INFO L226 Difference]: Without dead ends: 12970 [2022-11-18 20:49:07,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:49:07,757 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1468 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:07,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1045 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:49:07,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12970 states. [2022-11-18 20:49:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12970 to 12758. [2022-11-18 20:49:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12758 states, 10660 states have (on average 1.6460600375234522) internal successors, (17547), 10666 states have internal predecessors, (17547), 2071 states have call successors, (2071), 22 states have call predecessors, (2071), 26 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2022-11-18 20:49:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12758 states to 12758 states and 21884 transitions. [2022-11-18 20:49:09,048 INFO L78 Accepts]: Start accepts. Automaton has 12758 states and 21884 transitions. Word has length 132 [2022-11-18 20:49:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:09,048 INFO L495 AbstractCegarLoop]: Abstraction has 12758 states and 21884 transitions. [2022-11-18 20:49:09,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand 12758 states and 21884 transitions. [2022-11-18 20:49:09,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 20:49:09,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:09,078 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:09,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:49:09,078 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:09,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash -886491372, now seen corresponding path program 1 times [2022-11-18 20:49:09,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:09,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896912238] [2022-11-18 20:49:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:49:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:49:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:49:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:49:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:49:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:49:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:49:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 20:49:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:49:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:49:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 20:49:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:49:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-18 20:49:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:49:09,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:09,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896912238] [2022-11-18 20:49:09,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896912238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:09,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:09,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:49:09,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078826512] [2022-11-18 20:49:09,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:09,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:49:09,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:09,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:49:09,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:49:09,204 INFO L87 Difference]: Start difference. First operand 12758 states and 21884 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:13,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:13,620 INFO L93 Difference]: Finished difference Result 30818 states and 53393 transitions. [2022-11-18 20:49:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:49:13,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2022-11-18 20:49:13,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:13,707 INFO L225 Difference]: With dead ends: 30818 [2022-11-18 20:49:13,707 INFO L226 Difference]: Without dead ends: 20283 [2022-11-18 20:49:13,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:49:13,737 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1469 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:13,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1028 Invalid, 2501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 20:49:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20283 states. [2022-11-18 20:49:15,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20283 to 20071. [2022-11-18 20:49:15,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20071 states, 16770 states have (on average 1.621526535480024) internal successors, (27193), 16776 states have internal predecessors, (27193), 3274 states have call successors, (3274), 22 states have call predecessors, (3274), 26 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2022-11-18 20:49:15,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20071 states to 20071 states and 34080 transitions. [2022-11-18 20:49:15,667 INFO L78 Accepts]: Start accepts. Automaton has 20071 states and 34080 transitions. Word has length 133 [2022-11-18 20:49:15,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:15,667 INFO L495 AbstractCegarLoop]: Abstraction has 20071 states and 34080 transitions. [2022-11-18 20:49:15,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 20071 states and 34080 transitions. [2022-11-18 20:49:15,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-18 20:49:15,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:15,696 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:15,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:49:15,697 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:15,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:15,697 INFO L85 PathProgramCache]: Analyzing trace with hash 313182813, now seen corresponding path program 1 times [2022-11-18 20:49:15,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:15,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131543087] [2022-11-18 20:49:15,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:15,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:49:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:49:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:49:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:49:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:49:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:49:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:49:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:49:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-18 20:49:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 20:49:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 20:49:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 20:49:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 20:49:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:49:15,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:15,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131543087] [2022-11-18 20:49:15,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131543087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:15,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:15,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:49:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329965218] [2022-11-18 20:49:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:15,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:49:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:49:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:49:15,819 INFO L87 Difference]: Start difference. First operand 20071 states and 34080 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:21,701 INFO L93 Difference]: Finished difference Result 53260 states and 91927 transitions. [2022-11-18 20:49:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:49:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2022-11-18 20:49:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:21,864 INFO L225 Difference]: With dead ends: 53260 [2022-11-18 20:49:21,864 INFO L226 Difference]: Without dead ends: 36089 [2022-11-18 20:49:22,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:49:22,067 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1465 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:22,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1047 Invalid, 2528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:49:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36089 states. [2022-11-18 20:49:26,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36089 to 35877. [2022-11-18 20:49:26,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35877 states, 30126 states have (on average 1.618369514704906) internal successors, (48755), 30132 states have internal predecessors, (48755), 5724 states have call successors, (5724), 22 states have call predecessors, (5724), 26 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2022-11-18 20:49:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35877 states to 35877 states and 60816 transitions. [2022-11-18 20:49:26,218 INFO L78 Accepts]: Start accepts. Automaton has 35877 states and 60816 transitions. Word has length 134 [2022-11-18 20:49:26,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:26,218 INFO L495 AbstractCegarLoop]: Abstraction has 35877 states and 60816 transitions. [2022-11-18 20:49:26,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:26,219 INFO L276 IsEmpty]: Start isEmpty. Operand 35877 states and 60816 transitions. [2022-11-18 20:49:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-18 20:49:26,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:26,254 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:26,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:49:26,254 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:26,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1635141582, now seen corresponding path program 1 times [2022-11-18 20:49:26,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:26,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237923880] [2022-11-18 20:49:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:26,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:49:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:49:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 20:49:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 20:49:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:49:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 20:49:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:49:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:49:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:49:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:49:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-18 20:49:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-18 20:49:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 20:49:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:49:26,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:26,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237923880] [2022-11-18 20:49:26,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237923880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:26,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:26,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:49:26,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078704930] [2022-11-18 20:49:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:26,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:49:26,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:26,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:49:26,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:49:26,377 INFO L87 Difference]: Start difference. First operand 35877 states and 60816 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:49:35,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:35,036 INFO L93 Difference]: Finished difference Result 98107 states and 168486 transitions. [2022-11-18 20:49:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:49:35,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-11-18 20:49:35,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:35,277 INFO L225 Difference]: With dead ends: 98107 [2022-11-18 20:49:35,277 INFO L226 Difference]: Without dead ends: 66086 [2022-11-18 20:49:35,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:49:35,363 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1460 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:35,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1051 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 20:49:35,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66086 states.