./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f7652bf269245a8144605490a4a891295a82bf8357d2cf3971e290586b4e5c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:47:03,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:47:03,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:47:03,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:47:03,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:47:03,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:47:03,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:47:03,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:47:03,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:47:03,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:47:03,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:47:03,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:47:03,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:47:03,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:47:03,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:47:03,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:47:03,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:47:03,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:47:03,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:47:03,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:47:03,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:47:03,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:47:03,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:47:03,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:47:03,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:47:03,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:47:03,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:47:03,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:47:03,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:47:03,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:47:03,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:47:03,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:47:03,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:47:03,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:47:03,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:47:03,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:47:03,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:47:03,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:47:03,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:47:03,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:47:03,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:47:03,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:47:03,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:47:03,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:47:03,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:47:03,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:47:03,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:47:03,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:47:03,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:47:03,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:47:03,851 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:47:03,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:47:03,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:47:03,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:47:03,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:47:03,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:47:03,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:47:03,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:47:03,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:47:03,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:47:03,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:47:03,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:47:03,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:47:03,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:47:03,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:47:03,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:47:03,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:47:03,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:47:03,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:47:03,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:47:03,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:47:03,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:47:03,860 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:47:03,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:47:03,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:47:03,861 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_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f7652bf269245a8144605490a4a891295a82bf8357d2cf3971e290586b4e5c1 [2022-11-16 12:47:04,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:47:04,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:47:04,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:47:04,220 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:47:04,221 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:47:04,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/email_spec27_product27.cil.c [2022-11-16 12:47:04,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/data/8233d1b89/8240dd44c6c34cd1a5347f08e7f1ad64/FLAG9396c79f9 [2022-11-16 12:47:04,931 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:47:04,932 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c [2022-11-16 12:47:04,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/data/8233d1b89/8240dd44c6c34cd1a5347f08e7f1ad64/FLAG9396c79f9 [2022-11-16 12:47:05,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/data/8233d1b89/8240dd44c6c34cd1a5347f08e7f1ad64 [2022-11-16 12:47:05,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:47:05,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:47:05,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:47:05,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:47:05,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:47:05,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:47:05" (1/1) ... [2022-11-16 12:47:05,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@317478ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:05, skipping insertion in model container [2022-11-16 12:47:05,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:47:05" (1/1) ... [2022-11-16 12:47:05,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:47:05,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:47:06,005 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c[57688,57701] [2022-11-16 12:47:06,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:47:06,078 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:47:06,205 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/sv-benchmarks/c/product-lines/email_spec27_product27.cil.c[57688,57701] [2022-11-16 12:47:06,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:47:06,265 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:47:06,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06 WrapperNode [2022-11-16 12:47:06,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:47:06,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:47:06,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:47:06,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:47:06,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,387 INFO L138 Inliner]: procedures = 133, calls = 229, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1079 [2022-11-16 12:47:06,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:47:06,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:47:06,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:47:06,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:47:06,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:47:06,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:47:06,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:47:06,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:47:06,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (1/1) ... [2022-11-16 12:47:06,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:47:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:06,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:47:06,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:47:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-16 12:47:06,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-16 12:47:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-16 12:47:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-16 12:47:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-16 12:47:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-16 12:47:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-16 12:47:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-16 12:47:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-16 12:47:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-16 12:47:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-16 12:47:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-16 12:47:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-16 12:47:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-16 12:47:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-16 12:47:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-16 12:47:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-16 12:47:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-16 12:47:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-16 12:47:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-16 12:47:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-16 12:47:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-16 12:47:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-16 12:47:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-16 12:47:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-16 12:47:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:47:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-16 12:47:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-16 12:47:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-16 12:47:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-16 12:47:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-16 12:47:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-16 12:47:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-16 12:47:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-16 12:47:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-16 12:47:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-16 12:47:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-16 12:47:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-16 12:47:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-16 12:47:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-16 12:47:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-16 12:47:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-16 12:47:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-16 12:47:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-16 12:47:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-16 12:47:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-16 12:47:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:47:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-16 12:47:06,606 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-16 12:47:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-16 12:47:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-16 12:47:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:47:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:47:06,905 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:47:06,908 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:47:07,886 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:47:07,906 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:47:07,907 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:47:07,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:47:07 BoogieIcfgContainer [2022-11-16 12:47:07,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:47:07,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:47:07,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:47:07,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:47:07,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:47:05" (1/3) ... [2022-11-16 12:47:07,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f176c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:47:07, skipping insertion in model container [2022-11-16 12:47:07,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:06" (2/3) ... [2022-11-16 12:47:07,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f176c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:47:07, skipping insertion in model container [2022-11-16 12:47:07,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:47:07" (3/3) ... [2022-11-16 12:47:07,920 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product27.cil.c [2022-11-16 12:47:07,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:47:07,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:47:08,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:47:08,041 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;@719b616f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:47:08,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:47:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 411 states, 323 states have (on average 1.5572755417956656) internal successors, (503), 326 states have internal predecessors, (503), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-16 12:47:08,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-16 12:47:08,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:08,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:08,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:08,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 323488961, now seen corresponding path program 1 times [2022-11-16 12:47:08,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:08,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946910545] [2022-11-16 12:47:08,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:08,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:47:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:47:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:47:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:47:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:47:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 12:47:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:47:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 12:47:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:08,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:47:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:47:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:47:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:47:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:47:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 12:47:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-16 12:47:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:47:09,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946910545] [2022-11-16 12:47:09,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946910545] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:47:09,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796411980] [2022-11-16 12:47:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:09,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:09,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:09,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:47:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:09,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 12:47:09,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-16 12:47:09,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:47:09,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796411980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:09,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:47:09,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-16 12:47:09,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420604310] [2022-11-16 12:47:09,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:09,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:47:09,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:09,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:47:09,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:47:09,629 INFO L87 Difference]: Start difference. First operand has 411 states, 323 states have (on average 1.5572755417956656) internal successors, (503), 326 states have internal predecessors, (503), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:09,696 INFO L93 Difference]: Finished difference Result 624 states and 936 transitions. [2022-11-16 12:47:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:47:09,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2022-11-16 12:47:09,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:09,714 INFO L225 Difference]: With dead ends: 624 [2022-11-16 12:47:09,714 INFO L226 Difference]: Without dead ends: 404 [2022-11-16 12:47:09,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:47:09,723 INFO L413 NwaCegarLoop]: 623 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, 623 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:09,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:47:09,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-11-16 12:47:09,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-11-16 12:47:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 317 states have (on average 1.5520504731861198) internal successors, (492), 319 states have internal predecessors, (492), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-16 12:47:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 615 transitions. [2022-11-16 12:47:09,819 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 615 transitions. Word has length 136 [2022-11-16 12:47:09,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:09,823 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 615 transitions. [2022-11-16 12:47:09,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:09,824 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 615 transitions. [2022-11-16 12:47:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-16 12:47:09,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:09,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:09,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:10,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 12:47:10,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:10,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:10,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1614158268, now seen corresponding path program 1 times [2022-11-16 12:47:10,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:10,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543877935] [2022-11-16 12:47:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:10,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:47:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:47:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:47:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 12:47:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-16 12:47:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:47:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:47:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:47:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:47:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:47:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:47:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:47:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 12:47:10,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:10,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543877935] [2022-11-16 12:47:10,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543877935] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:47:10,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407461524] [2022-11-16 12:47:10,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:10,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:10,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:10,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:10,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:47:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:10,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:47:10,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 12:47:10,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:47:10,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407461524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:10,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:47:10,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-16 12:47:10,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745921313] [2022-11-16 12:47:10,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:10,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:47:10,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:47:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:47:10,914 INFO L87 Difference]: Start difference. First operand 404 states and 615 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:10,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:10,959 INFO L93 Difference]: Finished difference Result 614 states and 914 transitions. [2022-11-16 12:47:10,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:47:10,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 118 [2022-11-16 12:47:10,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:10,964 INFO L225 Difference]: With dead ends: 614 [2022-11-16 12:47:10,964 INFO L226 Difference]: Without dead ends: 407 [2022-11-16 12:47:10,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:47:10,988 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 1 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:10,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:47:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-16 12:47:11,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2022-11-16 12:47:11,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 319 states have (on average 1.54858934169279) internal successors, (494), 321 states have internal predecessors, (494), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-11-16 12:47:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 617 transitions. [2022-11-16 12:47:11,027 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 617 transitions. Word has length 118 [2022-11-16 12:47:11,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:11,031 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 617 transitions. [2022-11-16 12:47:11,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 617 transitions. [2022-11-16 12:47:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-16 12:47:11,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:11,035 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:11,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:11,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:11,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:11,237 INFO L85 PathProgramCache]: Analyzing trace with hash -622936648, now seen corresponding path program 1 times [2022-11-16 12:47:11,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:11,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797571004] [2022-11-16 12:47:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:11,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:47:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:47:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:47:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-16 12:47:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:47:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:47:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 12:47:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:47:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:47:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:47:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:47:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:47:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:47:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:47:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:47:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:11,644 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 12:47:11,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:11,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797571004] [2022-11-16 12:47:11,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797571004] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:47:11,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954532259] [2022-11-16 12:47:11,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:11,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:11,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:11,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:11,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:47:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:47:12,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:12,097 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-16 12:47:12,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:47:12,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954532259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:12,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:47:12,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-16 12:47:12,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849175236] [2022-11-16 12:47:12,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:12,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:47:12,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:12,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:47:12,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:47:12,100 INFO L87 Difference]: Start difference. First operand 406 states and 617 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:12,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:12,165 INFO L93 Difference]: Finished difference Result 865 states and 1334 transitions. [2022-11-16 12:47:12,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:47:12,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2022-11-16 12:47:12,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:12,171 INFO L225 Difference]: With dead ends: 865 [2022-11-16 12:47:12,171 INFO L226 Difference]: Without dead ends: 486 [2022-11-16 12:47:12,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:47:12,176 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 142 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1198 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 [2022-11-16 12:47:12,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1198 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:47:12,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-16 12:47:12,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 478. [2022-11-16 12:47:12,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 377 states have (on average 1.5676392572944298) internal successors, (591), 379 states have internal predecessors, (591), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-16 12:47:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 742 transitions. [2022-11-16 12:47:12,218 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 742 transitions. Word has length 146 [2022-11-16 12:47:12,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:12,219 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 742 transitions. [2022-11-16 12:47:12,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:12,219 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 742 transitions. [2022-11-16 12:47:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-16 12:47:12,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:12,224 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:12,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:12,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 12:47:12,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash -175565935, now seen corresponding path program 1 times [2022-11-16 12:47:12,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:12,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25350190] [2022-11-16 12:47:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:12,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:47:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 12:47:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-16 12:47:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 12:47:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:47:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:47:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:47:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:47:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:47:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-16 12:47:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:47:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 12:47:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:12,762 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:47:12,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:12,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25350190] [2022-11-16 12:47:12,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25350190] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:47:12,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556201401] [2022-11-16 12:47:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:12,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:12,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:12,765 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:12,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:47:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:47:13,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 12:47:13,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:47:13,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556201401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:13,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:47:13,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-16 12:47:13,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981325542] [2022-11-16 12:47:13,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:13,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:47:13,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:13,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:47:13,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:47:13,265 INFO L87 Difference]: Start difference. First operand 478 states and 742 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:47:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:13,364 INFO L93 Difference]: Finished difference Result 947 states and 1474 transitions. [2022-11-16 12:47:13,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:47:13,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 128 [2022-11-16 12:47:13,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:13,370 INFO L225 Difference]: With dead ends: 947 [2022-11-16 12:47:13,370 INFO L226 Difference]: Without dead ends: 480 [2022-11-16 12:47:13,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:13,378 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 160 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:13,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2241 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:47:13,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-16 12:47:13,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2022-11-16 12:47:13,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 378 states have (on average 1.566137566137566) internal successors, (592), 381 states have internal predecessors, (592), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2022-11-16 12:47:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 745 transitions. [2022-11-16 12:47:13,421 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 745 transitions. Word has length 128 [2022-11-16 12:47:13,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:13,422 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 745 transitions. [2022-11-16 12:47:13,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:47:13,422 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 745 transitions. [2022-11-16 12:47:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-16 12:47:13,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:13,427 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:13,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:13,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:13,635 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:13,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2108094788, now seen corresponding path program 1 times [2022-11-16 12:47:13,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:13,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872080989] [2022-11-16 12:47:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:13,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 12:47:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-16 12:47:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-16 12:47:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:47:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:47:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:47:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:47:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:47:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:47:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:47:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:14,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:47:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:47:14,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:14,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872080989] [2022-11-16 12:47:14,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872080989] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:47:14,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175769723] [2022-11-16 12:47:14,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:14,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:14,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:14,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:14,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:47:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:14,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:47:14,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 12:47:14,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:47:14,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175769723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:14,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:47:14,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-16 12:47:14,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865732636] [2022-11-16 12:47:14,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:14,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:47:14,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:14,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:47:14,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:47:14,508 INFO L87 Difference]: Start difference. First operand 480 states and 745 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:47:14,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:14,601 INFO L93 Difference]: Finished difference Result 949 states and 1479 transitions. [2022-11-16 12:47:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:47:14,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2022-11-16 12:47:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:14,607 INFO L225 Difference]: With dead ends: 949 [2022-11-16 12:47:14,608 INFO L226 Difference]: Without dead ends: 482 [2022-11-16 12:47:14,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:47:14,610 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 159 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2230 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 [2022-11-16 12:47:14,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2230 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:47:14,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-11-16 12:47:14,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2022-11-16 12:47:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 379 states have (on average 1.5646437994722955) internal successors, (593), 383 states have internal predecessors, (593), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-16 12:47:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 751 transitions. [2022-11-16 12:47:14,644 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 751 transitions. Word has length 129 [2022-11-16 12:47:14,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:14,645 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 751 transitions. [2022-11-16 12:47:14,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:47:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 751 transitions. [2022-11-16 12:47:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-16 12:47:14,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:14,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:14,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:14,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:14,856 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:14,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:14,857 INFO L85 PathProgramCache]: Analyzing trace with hash 339118270, now seen corresponding path program 1 times [2022-11-16 12:47:14,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:14,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798515731] [2022-11-16 12:47:14,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:14,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:47:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 12:47:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 12:47:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:47:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:47:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:47:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:47:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:47:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:47:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 12:47:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:47:15,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:15,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798515731] [2022-11-16 12:47:15,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798515731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:15,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:15,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:47:15,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180897275] [2022-11-16 12:47:15,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:15,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:47:15,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:15,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:47:15,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:47:15,158 INFO L87 Difference]: Start difference. First operand 482 states and 751 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:47:18,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:18,685 INFO L93 Difference]: Finished difference Result 1139 states and 1801 transitions. [2022-11-16 12:47:18,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:47:18,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2022-11-16 12:47:18,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:18,693 INFO L225 Difference]: With dead ends: 1139 [2022-11-16 12:47:18,693 INFO L226 Difference]: Without dead ends: 680 [2022-11-16 12:47:18,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:47:18,696 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1530 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:18,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 1248 Invalid, 3748 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [596 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 12:47:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-11-16 12:47:18,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 482. [2022-11-16 12:47:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 379 states have (on average 1.5646437994722955) internal successors, (593), 383 states have internal predecessors, (593), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2022-11-16 12:47:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 750 transitions. [2022-11-16 12:47:18,789 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 750 transitions. Word has length 130 [2022-11-16 12:47:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:18,789 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 750 transitions. [2022-11-16 12:47:18,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-16 12:47:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 750 transitions. [2022-11-16 12:47:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-16 12:47:18,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:18,793 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:18,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:47:18,794 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1328359571, now seen corresponding path program 1 times [2022-11-16 12:47:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:18,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799857425] [2022-11-16 12:47:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:18,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 12:47:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 12:47:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:47:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 12:47:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:47:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:47:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 12:47:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:47:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:47:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 12:47:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:47:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:47:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 12:47:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 12:47:19,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:19,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799857425] [2022-11-16 12:47:19,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799857425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:19,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:19,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:47:19,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501107519] [2022-11-16 12:47:19,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:19,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:47:19,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:19,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:47:19,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:47:19,054 INFO L87 Difference]: Start difference. First operand 482 states and 750 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-16 12:47:22,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:22,238 INFO L93 Difference]: Finished difference Result 1141 states and 1804 transitions. [2022-11-16 12:47:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:47:22,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2022-11-16 12:47:22,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:22,244 INFO L225 Difference]: With dead ends: 1141 [2022-11-16 12:47:22,244 INFO L226 Difference]: Without dead ends: 682 [2022-11-16 12:47:22,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:47:22,247 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1528 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3160 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 3160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:22,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 1248 Invalid, 3756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 3160 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 12:47:22,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-11-16 12:47:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 484. [2022-11-16 12:47:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 380 states have (on average 1.563157894736842) internal successors, (594), 385 states have internal predecessors, (594), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2022-11-16 12:47:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 753 transitions. [2022-11-16 12:47:22,296 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 753 transitions. Word has length 150 [2022-11-16 12:47:22,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:22,296 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 753 transitions. [2022-11-16 12:47:22,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-16 12:47:22,297 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 753 transitions. [2022-11-16 12:47:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-16 12:47:22,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:22,300 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:22,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:47:22,300 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:22,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -641560083, now seen corresponding path program 1 times [2022-11-16 12:47:22,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:22,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864686042] [2022-11-16 12:47:22,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:22,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:47:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:47:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:47:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:47:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 12:47:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:47:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:47:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:47:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:47:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:47:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:47:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:47:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-16 12:47:22,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:22,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864686042] [2022-11-16 12:47:22,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864686042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:22,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:22,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:22,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7107257] [2022-11-16 12:47:22,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:22,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:47:22,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:47:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:47:22,633 INFO L87 Difference]: Start difference. First operand 484 states and 753 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-16 12:47:26,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:26,843 INFO L93 Difference]: Finished difference Result 1139 states and 1799 transitions. [2022-11-16 12:47:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:47:26,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 151 [2022-11-16 12:47:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:26,848 INFO L225 Difference]: With dead ends: 1139 [2022-11-16 12:47:26,848 INFO L226 Difference]: Without dead ends: 682 [2022-11-16 12:47:26,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:47:26,851 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1687 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5213 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 5213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:26,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 1629 Invalid, 5862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [649 Valid, 5213 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 12:47:26,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-11-16 12:47:26,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 484. [2022-11-16 12:47:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 380 states have (on average 1.563157894736842) internal successors, (594), 385 states have internal predecessors, (594), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-16 12:47:26,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 752 transitions. [2022-11-16 12:47:26,931 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 752 transitions. Word has length 151 [2022-11-16 12:47:26,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:26,931 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 752 transitions. [2022-11-16 12:47:26,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-16 12:47:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 752 transitions. [2022-11-16 12:47:26,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-16 12:47:26,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:26,935 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] [2022-11-16 12:47:26,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:47:26,935 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:26,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:26,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1935420599, now seen corresponding path program 1 times [2022-11-16 12:47:26,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:26,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979737720] [2022-11-16 12:47:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:47:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:47:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:47:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:47:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:47:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:47:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:47:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 12:47:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:47:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:47:27,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:27,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979737720] [2022-11-16 12:47:27,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979737720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:27,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:27,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:27,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933659400] [2022-11-16 12:47:27,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:27,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:47:27,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:27,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:47:27,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:47:27,245 INFO L87 Difference]: Start difference. First operand 484 states and 752 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-16 12:47:31,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:31,399 INFO L93 Difference]: Finished difference Result 1141 states and 1805 transitions. [2022-11-16 12:47:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:47:31,400 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 133 [2022-11-16 12:47:31,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:31,405 INFO L225 Difference]: With dead ends: 1141 [2022-11-16 12:47:31,405 INFO L226 Difference]: Without dead ends: 684 [2022-11-16 12:47:31,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:47:31,410 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1682 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5246 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 5246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:31,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 1629 Invalid, 5892 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [646 Valid, 5246 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 12:47:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-11-16 12:47:31,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 486. [2022-11-16 12:47:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 381 states have (on average 1.5616797900262467) internal successors, (595), 387 states have internal predecessors, (595), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2022-11-16 12:47:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 758 transitions. [2022-11-16 12:47:31,466 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 758 transitions. Word has length 133 [2022-11-16 12:47:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:31,467 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 758 transitions. [2022-11-16 12:47:31,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-16 12:47:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 758 transitions. [2022-11-16 12:47:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-16 12:47:31,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:31,471 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:31,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:47:31,471 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:31,472 INFO L85 PathProgramCache]: Analyzing trace with hash -974494606, now seen corresponding path program 1 times [2022-11-16 12:47:31,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:31,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303004464] [2022-11-16 12:47:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 12:47:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:47:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:47:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:47:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:47:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:47:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-16 12:47:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 12:47:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 12:47:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:47:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 12:47:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-16 12:47:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-16 12:47:31,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:31,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303004464] [2022-11-16 12:47:31,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303004464] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:47:31,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966985049] [2022-11-16 12:47:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:31,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:31,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:31,770 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:31,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:47:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:32,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:47:32,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:47:32,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:47:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:47:32,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966985049] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:47:32,334 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:47:32,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-16 12:47:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776105257] [2022-11-16 12:47:32,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:47:32,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:47:32,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:32,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:47:32,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:47:32,336 INFO L87 Difference]: Start difference. First operand 486 states and 758 transitions. Second operand has 15 states, 14 states have (on average 11.571428571428571) internal successors, (162), 11 states have internal predecessors, (162), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-11-16 12:47:37,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:37,758 INFO L93 Difference]: Finished difference Result 2050 states and 3443 transitions. [2022-11-16 12:47:37,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:47:37,759 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.571428571428571) internal successors, (162), 11 states have internal predecessors, (162), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 153 [2022-11-16 12:47:37,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:37,769 INFO L225 Difference]: With dead ends: 2050 [2022-11-16 12:47:37,769 INFO L226 Difference]: Without dead ends: 1595 [2022-11-16 12:47:37,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-16 12:47:37,772 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 4689 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 6003 mSolverCounterSat, 1666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4691 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 7669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1666 IncrementalHoareTripleChecker+Valid, 6003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:37,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4691 Valid, 3865 Invalid, 7669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1666 Valid, 6003 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-16 12:47:37,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2022-11-16 12:47:37,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 929. [2022-11-16 12:47:37,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 745 states have (on average 1.6120805369127518) internal successors, (1201), 751 states have internal predecessors, (1201), 155 states have call successors, (155), 24 states have call predecessors, (155), 28 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2022-11-16 12:47:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1532 transitions. [2022-11-16 12:47:37,896 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1532 transitions. Word has length 153 [2022-11-16 12:47:37,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:37,897 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1532 transitions. [2022-11-16 12:47:37,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.571428571428571) internal successors, (162), 11 states have internal predecessors, (162), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2022-11-16 12:47:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1532 transitions. [2022-11-16 12:47:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-16 12:47:37,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:37,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:37,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:38,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7ba6aba-f953-4cac-811a-a9f225fe8f89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:47:38,111 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:38,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:38,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1550917468, now seen corresponding path program 1 times [2022-11-16 12:47:38,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:38,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727589177] [2022-11-16 12:47:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:38,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:47:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:47:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 12:47:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:47:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:47:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:47:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:47:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:47:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:47:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:47:38,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:38,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727589177] [2022-11-16 12:47:38,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727589177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:38,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:38,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:38,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375319844] [2022-11-16 12:47:38,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:38,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:38,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:38,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:38,261 INFO L87 Difference]: Start difference. First operand 929 states and 1532 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:40,788 INFO L93 Difference]: Finished difference Result 2401 states and 4051 transitions. [2022-11-16 12:47:40,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:47:40,789 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2022-11-16 12:47:40,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:40,798 INFO L225 Difference]: With dead ends: 2401 [2022-11-16 12:47:40,799 INFO L226 Difference]: Without dead ends: 1550 [2022-11-16 12:47:40,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:40,803 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1513 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:40,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 1063 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:47:40,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-11-16 12:47:40,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1344. [2022-11-16 12:47:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1081 states have (on average 1.6290471785383904) internal successors, (1761), 1087 states have internal predecessors, (1761), 234 states have call successors, (234), 24 states have call predecessors, (234), 28 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2022-11-16 12:47:40,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 2260 transitions. [2022-11-16 12:47:40,992 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 2260 transitions. Word has length 137 [2022-11-16 12:47:40,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:40,993 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 2260 transitions. [2022-11-16 12:47:40,993 INFO L496 AbstractCegarLoop]: INTERPOLANT 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, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 2260 transitions. [2022-11-16 12:47:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 12:47:41,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:41,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:41,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:47:41,002 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:41,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:41,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1300449264, now seen corresponding path program 1 times [2022-11-16 12:47:41,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:41,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807985222] [2022-11-16 12:47:41,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:41,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 12:47:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:47:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 12:47:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:47:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:47:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:47:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:47:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:47:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:47:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:41,145 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:47:41,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807985222] [2022-11-16 12:47:41,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807985222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:41,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:41,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:41,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814115419] [2022-11-16 12:47:41,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:41,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:41,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:41,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:41,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:41,148 INFO L87 Difference]: Start difference. First operand 1344 states and 2260 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:43,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:43,721 INFO L93 Difference]: Finished difference Result 3440 states and 5864 transitions. [2022-11-16 12:47:43,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:47:43,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2022-11-16 12:47:43,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:43,735 INFO L225 Difference]: With dead ends: 3440 [2022-11-16 12:47:43,735 INFO L226 Difference]: Without dead ends: 2227 [2022-11-16 12:47:43,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:43,740 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1509 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:43,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1047 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:47:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2022-11-16 12:47:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2021. [2022-11-16 12:47:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2021 states, 1639 states have (on average 1.636973764490543) internal successors, (2683), 1645 states have internal predecessors, (2683), 353 states have call successors, (353), 24 states have call predecessors, (353), 28 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2022-11-16 12:47:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 3420 transitions. [2022-11-16 12:47:44,010 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 3420 transitions. Word has length 138 [2022-11-16 12:47:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:44,011 INFO L495 AbstractCegarLoop]: Abstraction has 2021 states and 3420 transitions. [2022-11-16 12:47:44,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:44,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 3420 transitions. [2022-11-16 12:47:44,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-16 12:47:44,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:44,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:44,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:47:44,021 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:44,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:44,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1096459884, now seen corresponding path program 1 times [2022-11-16 12:47:44,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:44,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389356370] [2022-11-16 12:47:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:44,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 12:47:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:47:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:47:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-16 12:47:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:47:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:47:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:47:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:47:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:47:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 12:47:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 12:47:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 12:47:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:47:44,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:44,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389356370] [2022-11-16 12:47:44,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389356370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:44,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:44,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:44,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908716834] [2022-11-16 12:47:44,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:44,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:44,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:44,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:44,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:44,176 INFO L87 Difference]: Start difference. First operand 2021 states and 3420 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:46,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:46,818 INFO L93 Difference]: Finished difference Result 5025 states and 8643 transitions. [2022-11-16 12:47:46,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:47:46,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2022-11-16 12:47:46,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:46,838 INFO L225 Difference]: With dead ends: 5025 [2022-11-16 12:47:46,838 INFO L226 Difference]: Without dead ends: 3270 [2022-11-16 12:47:46,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:46,845 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1507 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:46,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1042 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:47:46,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2022-11-16 12:47:47,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3064. [2022-11-16 12:47:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 2520 states have (on average 1.6432539682539682) internal successors, (4141), 2526 states have internal predecessors, (4141), 515 states have call successors, (515), 24 states have call predecessors, (515), 28 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2022-11-16 12:47:47,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 5218 transitions. [2022-11-16 12:47:47,233 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 5218 transitions. Word has length 158 [2022-11-16 12:47:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:47,233 INFO L495 AbstractCegarLoop]: Abstraction has 3064 states and 5218 transitions. [2022-11-16 12:47:47,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:47,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 5218 transitions. [2022-11-16 12:47:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-16 12:47:47,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:47,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:47,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:47:47,247 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:47,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1803601009, now seen corresponding path program 1 times [2022-11-16 12:47:47,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:47,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626661198] [2022-11-16 12:47:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:47,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 12:47:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:47:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:47:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:47:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-16 12:47:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:47:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 12:47:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:47:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:47:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:47,399 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:47:47,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:47,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626661198] [2022-11-16 12:47:47,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626661198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:47,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:47,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:47,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573658771] [2022-11-16 12:47:47,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:47,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:47,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:47,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:47,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:47,403 INFO L87 Difference]: Start difference. First operand 3064 states and 5218 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:50,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:50,185 INFO L93 Difference]: Finished difference Result 7539 states and 13058 transitions. [2022-11-16 12:47:50,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:47:50,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2022-11-16 12:47:50,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:50,213 INFO L225 Difference]: With dead ends: 7539 [2022-11-16 12:47:50,213 INFO L226 Difference]: Without dead ends: 4960 [2022-11-16 12:47:50,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:50,228 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1505 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:50,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1043 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:47:50,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4960 states. [2022-11-16 12:47:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4960 to 4754. [2022-11-16 12:47:50,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4754 states, 3965 states have (on average 1.6476670870113492) internal successors, (6533), 3971 states have internal predecessors, (6533), 760 states have call successors, (760), 24 states have call predecessors, (760), 28 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2022-11-16 12:47:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4754 states to 4754 states and 8126 transitions. [2022-11-16 12:47:50,892 INFO L78 Accepts]: Start accepts. Automaton has 4754 states and 8126 transitions. Word has length 140 [2022-11-16 12:47:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:50,893 INFO L495 AbstractCegarLoop]: Abstraction has 4754 states and 8126 transitions. [2022-11-16 12:47:50,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:47:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 4754 states and 8126 transitions. [2022-11-16 12:47:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-16 12:47:50,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:50,912 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:50,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:47:50,912 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:50,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:50,913 INFO L85 PathProgramCache]: Analyzing trace with hash 790465048, now seen corresponding path program 1 times [2022-11-16 12:47:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:50,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734321582] [2022-11-16 12:47:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:50,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-16 12:47:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:47:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:47:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 12:47:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:47:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:47:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-16 12:47:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 12:47:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 12:47:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 12:47:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:47:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-16 12:47:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:51,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:47:51,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:51,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734321582] [2022-11-16 12:47:51,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734321582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:51,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:51,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:51,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330747243] [2022-11-16 12:47:51,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:51,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:51,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:51,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:51,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:51,063 INFO L87 Difference]: Start difference. First operand 4754 states and 8126 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:54,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:54,104 INFO L93 Difference]: Finished difference Result 11740 states and 20435 transitions. [2022-11-16 12:47:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:47:54,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2022-11-16 12:47:54,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:54,147 INFO L225 Difference]: With dead ends: 11740 [2022-11-16 12:47:54,148 INFO L226 Difference]: Without dead ends: 7803 [2022-11-16 12:47:54,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:54,163 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1501 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:54,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1064 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:47:54,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7803 states. [2022-11-16 12:47:55,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7803 to 7597. [2022-11-16 12:47:55,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7597 states, 6315 states have (on average 1.645605700712589) internal successors, (10392), 6321 states have internal predecessors, (10392), 1253 states have call successors, (1253), 24 states have call predecessors, (1253), 28 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2022-11-16 12:47:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7597 states to 7597 states and 13015 transitions. [2022-11-16 12:47:55,159 INFO L78 Accepts]: Start accepts. Automaton has 7597 states and 13015 transitions. Word has length 160 [2022-11-16 12:47:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:55,160 INFO L495 AbstractCegarLoop]: Abstraction has 7597 states and 13015 transitions. [2022-11-16 12:47:55,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:55,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7597 states and 13015 transitions. [2022-11-16 12:47:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-16 12:47:55,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:55,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:55,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:47:55,186 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:47:55,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash -204891983, now seen corresponding path program 1 times [2022-11-16 12:47:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:55,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848030263] [2022-11-16 12:47:55,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:55,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:47:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:47:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:47:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:47:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:47:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:47:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 12:47:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 12:47:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 12:47:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:47:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 12:47:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:47:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-16 12:47:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 12:47:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-16 12:47:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 12:47:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 12:47:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 12:47:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:47:55,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:55,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848030263] [2022-11-16 12:47:55,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848030263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:55,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:55,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:47:55,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26062579] [2022-11-16 12:47:55,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:55,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:47:55,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:55,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:47:55,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:47:55,342 INFO L87 Difference]: Start difference. First operand 7597 states and 13015 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:47:58,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:58,785 INFO L93 Difference]: Finished difference Result 19355 states and 33711 transitions. [2022-11-16 12:47:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:47:58,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2022-11-16 12:47:58,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:58,837 INFO L225 Difference]: With dead ends: 19355 [2022-11-16 12:47:58,838 INFO L226 Difference]: Without dead ends: 12977 [2022-11-16 12:47:58,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:58,860 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1504 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:58,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1042 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:47:58,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12977 states. [2022-11-16 12:48:00,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12977 to 12771. [2022-11-16 12:48:00,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12771 states, 10667 states have (on average 1.6457298209430955) internal successors, (17555), 10673 states have internal predecessors, (17555), 2075 states have call successors, (2075), 24 states have call predecessors, (2075), 28 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2022-11-16 12:48:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12771 states to 12771 states and 21900 transitions. [2022-11-16 12:48:00,266 INFO L78 Accepts]: Start accepts. Automaton has 12771 states and 21900 transitions. Word has length 161 [2022-11-16 12:48:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:00,267 INFO L495 AbstractCegarLoop]: Abstraction has 12771 states and 21900 transitions. [2022-11-16 12:48:00,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:48:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 12771 states and 21900 transitions. [2022-11-16 12:48:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-16 12:48:00,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:00,303 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:00,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:48:00,304 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:48:00,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:00,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1961536668, now seen corresponding path program 1 times [2022-11-16 12:48:00,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:00,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338011015] [2022-11-16 12:48:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:00,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:48:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:48:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:48:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:48:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:48:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:48:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 12:48:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 12:48:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 12:48:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 12:48:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-16 12:48:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:48:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 12:48:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 12:48:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 12:48:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:00,430 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:48:00,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:00,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338011015] [2022-11-16 12:48:00,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338011015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:00,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:00,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:48:00,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463542825] [2022-11-16 12:48:00,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:00,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:48:00,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:00,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:48:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:48:00,433 INFO L87 Difference]: Start difference. First operand 12771 states and 21900 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:48:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:04,853 INFO L93 Difference]: Finished difference Result 30838 states and 53411 transitions. [2022-11-16 12:48:04,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:48:04,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2022-11-16 12:48:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:04,944 INFO L225 Difference]: With dead ends: 30838 [2022-11-16 12:48:04,944 INFO L226 Difference]: Without dead ends: 20290 [2022-11-16 12:48:04,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:48:04,977 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1499 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:04,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1030 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:48:05,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2022-11-16 12:48:07,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 20084. [2022-11-16 12:48:07,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20084 states, 16777 states have (on average 1.621326816474936) internal successors, (27201), 16783 states have internal predecessors, (27201), 3278 states have call successors, (3278), 24 states have call predecessors, (3278), 28 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2022-11-16 12:48:07,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20084 states to 20084 states and 34096 transitions. [2022-11-16 12:48:07,279 INFO L78 Accepts]: Start accepts. Automaton has 20084 states and 34096 transitions. Word has length 143 [2022-11-16 12:48:07,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:07,279 INFO L495 AbstractCegarLoop]: Abstraction has 20084 states and 34096 transitions. [2022-11-16 12:48:07,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:48:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 20084 states and 34096 transitions. [2022-11-16 12:48:07,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-16 12:48:07,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:07,322 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:07,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:48:07,322 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:48:07,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:07,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1336629238, now seen corresponding path program 1 times [2022-11-16 12:48:07,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:07,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144706784] [2022-11-16 12:48:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:07,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:48:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:48:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:48:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:48:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:48:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:48:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 12:48:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 12:48:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:48:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-16 12:48:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-16 12:48:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:48:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 12:48:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:48:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:48:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:48:07,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:07,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144706784] [2022-11-16 12:48:07,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144706784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:07,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:07,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:48:07,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47265182] [2022-11-16 12:48:07,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:07,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:48:07,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:07,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:48:07,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:48:07,491 INFO L87 Difference]: Start difference. First operand 20084 states and 34096 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:48:13,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:13,292 INFO L93 Difference]: Finished difference Result 53280 states and 91945 transitions. [2022-11-16 12:48:13,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:48:13,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2022-11-16 12:48:13,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:13,462 INFO L225 Difference]: With dead ends: 53280 [2022-11-16 12:48:13,462 INFO L226 Difference]: Without dead ends: 36096 [2022-11-16 12:48:13,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:48:13,515 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1496 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:13,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1045 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:48:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36096 states. [2022-11-16 12:48:17,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36096 to 35890. [2022-11-16 12:48:17,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35890 states, 30133 states have (on average 1.6182590515381807) internal successors, (48763), 30139 states have internal predecessors, (48763), 5728 states have call successors, (5728), 24 states have call predecessors, (5728), 28 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2022-11-16 12:48:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35890 states to 35890 states and 60832 transitions. [2022-11-16 12:48:17,350 INFO L78 Accepts]: Start accepts. Automaton has 35890 states and 60832 transitions. Word has length 144 [2022-11-16 12:48:17,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:17,351 INFO L495 AbstractCegarLoop]: Abstraction has 35890 states and 60832 transitions. [2022-11-16 12:48:17,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:48:17,351 INFO L276 IsEmpty]: Start isEmpty. Operand 35890 states and 60832 transitions. [2022-11-16 12:48:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-16 12:48:17,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:17,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:17,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:48:17,409 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:48:17,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1660367504, now seen corresponding path program 1 times [2022-11-16 12:48:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:17,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935578868] [2022-11-16 12:48:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:17,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:48:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 12:48:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:48:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 12:48:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:48:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-16 12:48:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:48:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 12:48:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 12:48:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-16 12:48:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 12:48:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:48:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-16 12:48:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-16 12:48:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 12:48:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-16 12:48:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 12:48:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-16 12:48:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-16 12:48:17,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:17,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935578868] [2022-11-16 12:48:17,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935578868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:17,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:17,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:48:17,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285788380] [2022-11-16 12:48:17,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:17,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:48:17,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:48:17,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:48:17,580 INFO L87 Difference]: Start difference. First operand 35890 states and 60832 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 12:48:25,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:25,842 INFO L93 Difference]: Finished difference Result 98127 states and 168504 transitions. [2022-11-16 12:48:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:48:25,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2022-11-16 12:48:25,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:26,097 INFO L225 Difference]: With dead ends: 98127 [2022-11-16 12:48:26,097 INFO L226 Difference]: Without dead ends: 66093 [2022-11-16 12:48:26,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:48:26,172 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1493 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:26,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1049 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 12:48:26,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66093 states.