./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:38:29,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:38:29,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:38:29,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:38:29,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:38:29,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:38:29,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:38:29,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:38:29,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:38:29,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:38:29,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:38:29,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:38:29,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:38:29,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:38:29,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:38:29,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:38:29,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:38:29,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:38:29,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:38:29,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:38:29,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:38:29,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:38:29,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:38:29,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:38:29,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:38:29,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:38:29,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:38:29,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:38:29,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:38:29,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:38:29,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:38:29,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:38:29,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:38:29,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:38:29,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:38:29,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:38:29,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:38:29,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:38:29,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:38:29,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:38:29,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:38:29,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:38:29,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:38:29,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:38:29,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:38:29,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:38:29,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:38:29,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:38:29,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:38:29,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:38:29,888 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:38:29,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:38:29,890 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:38:29,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:38:29,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:38:29,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:38:29,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:38:29,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:38:29,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:38:29,891 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:38:29,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:38:29,891 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:38:29,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:38:29,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:38:29,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:38:29,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:38:29,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:29,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:38:29,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:38:29,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:38:29,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:38:29,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:38:29,895 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:38:29,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:38:29,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:38:29,896 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_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67a5f870249755b02192cafa5b1141561e5c0ebfbfae7faed4cfc72be0ad5c3d [2022-10-17 10:38:30,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:38:30,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:38:30,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:38:30,241 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:38:30,241 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:38:30,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2022-10-17 10:38:30,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/data/01e14ddcc/139d4836c8874d39b3ce57a5c82a29aa/FLAGbc03df651 [2022-10-17 10:38:30,890 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:38:30,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c [2022-10-17 10:38:30,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/data/01e14ddcc/139d4836c8874d39b3ce57a5c82a29aa/FLAGbc03df651 [2022-10-17 10:38:31,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/data/01e14ddcc/139d4836c8874d39b3ce57a5c82a29aa [2022-10-17 10:38:31,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:38:31,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:38:31,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:31,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:38:31,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:38:31,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:31" (1/1) ... [2022-10-17 10:38:31,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bff8a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:31, skipping insertion in model container [2022-10-17 10:38:31,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:31" (1/1) ... [2022-10-17 10:38:31,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:38:31,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:38:31,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2022-10-17 10:38:31,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:31,937 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:38:32,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/sv-benchmarks/c/product-lines/email_spec6_product32.cil.c[40215,40228] [2022-10-17 10:38:32,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:32,136 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:38:32,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32 WrapperNode [2022-10-17 10:38:32,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:32,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:32,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:38:32,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:38:32,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,230 INFO L138 Inliner]: procedures = 135, calls = 244, calls flagged for inlining = 62, calls inlined = 54, statements flattened = 1014 [2022-10-17 10:38:32,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:32,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:38:32,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:38:32,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:38:32,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:38:32,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:38:32,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:38:32,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:38:32,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (1/1) ... [2022-10-17 10:38:32,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:32,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:32,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:38:32,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:38:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-10-17 10:38:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-10-17 10:38:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-10-17 10:38:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-10-17 10:38:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-10-17 10:38:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-10-17 10:38:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-10-17 10:38:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-10-17 10:38:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-10-17 10:38:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-10-17 10:38:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-10-17 10:38:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-10-17 10:38:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-10-17 10:38:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-10-17 10:38:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-10-17 10:38:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-10-17 10:38:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-10-17 10:38:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-10-17 10:38:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-10-17 10:38:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-10-17 10:38:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-10-17 10:38:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-10-17 10:38:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-10-17 10:38:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-10-17 10:38:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-10-17 10:38:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-10-17 10:38:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-10-17 10:38:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-10-17 10:38:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-10-17 10:38:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-10-17 10:38:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-10-17 10:38:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:38:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-10-17 10:38:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-10-17 10:38:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-10-17 10:38:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-10-17 10:38:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-10-17 10:38:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-10-17 10:38:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-10-17 10:38:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-10-17 10:38:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-10-17 10:38:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-10-17 10:38:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-10-17 10:38:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-10-17 10:38:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-10-17 10:38:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-10-17 10:38:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-10-17 10:38:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-10-17 10:38:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-10-17 10:38:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-10-17 10:38:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-10-17 10:38:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-10-17 10:38:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-10-17 10:38:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-10-17 10:38:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:38:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-10-17 10:38:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-10-17 10:38:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-10-17 10:38:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-10-17 10:38:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:38:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:38:32,819 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:38:32,822 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:38:33,620 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:38:33,631 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:38:33,631 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:38:33,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:33 BoogieIcfgContainer [2022-10-17 10:38:33,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:38:33,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:38:33,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:38:33,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:38:33,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:38:31" (1/3) ... [2022-10-17 10:38:33,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc23397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:33, skipping insertion in model container [2022-10-17 10:38:33,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:32" (2/3) ... [2022-10-17 10:38:33,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc23397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:33, skipping insertion in model container [2022-10-17 10:38:33,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:33" (3/3) ... [2022-10-17 10:38:33,644 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2022-10-17 10:38:33,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:38:33,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:38:33,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:38:33,738 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;@1d2ddb5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:38:33,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:38:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 430 states, 333 states have (on average 1.5465465465465464) internal successors, (515), 338 states have internal predecessors, (515), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2022-10-17 10:38:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-17 10:38:33,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:33,797 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] [2022-10-17 10:38:33,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash 999257527, now seen corresponding path program 1 times [2022-10-17 10:38:33,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:33,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859356803] [2022-10-17 10:38:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:33,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:34,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:38:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:38:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:38:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:38:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:38:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:38:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:38:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:38:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:38:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:38:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-17 10:38:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-17 10:38:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 10:38:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-17 10:38:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 10:38:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:38:34,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:34,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859356803] [2022-10-17 10:38:34,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859356803] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:34,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321845849] [2022-10-17 10:38:34,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:34,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:34,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:34,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:34,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:38:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:35,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:38:35,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 10:38:35,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:35,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321845849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:35,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:38:35,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-10-17 10:38:35,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763568584] [2022-10-17 10:38:35,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:35,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:38:35,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:35,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:38:35,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:38:35,380 INFO L87 Difference]: Start difference. First operand has 430 states, 333 states have (on average 1.5465465465465464) internal successors, (515), 338 states have internal predecessors, (515), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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) [2022-10-17 10:38:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:35,455 INFO L93 Difference]: Finished difference Result 667 states and 988 transitions. [2022-10-17 10:38:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:38:35,458 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 135 [2022-10-17 10:38:35,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:35,476 INFO L225 Difference]: With dead ends: 667 [2022-10-17 10:38:35,476 INFO L226 Difference]: Without dead ends: 423 [2022-10-17 10:38:35,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:38:35,487 INFO L413 NwaCegarLoop]: 645 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, 645 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:35,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:35,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-10-17 10:38:35,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2022-10-17 10:38:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 327 states have (on average 1.5412844036697249) internal successors, (504), 331 states have internal predecessors, (504), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-10-17 10:38:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 637 transitions. [2022-10-17 10:38:35,562 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 637 transitions. Word has length 135 [2022-10-17 10:38:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:35,564 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 637 transitions. [2022-10-17 10:38:35,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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) [2022-10-17 10:38:35,564 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 637 transitions. [2022-10-17 10:38:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-17 10:38:35,571 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:35,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:35,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-17 10:38:35,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-17 10:38:35,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:35,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:35,799 INFO L85 PathProgramCache]: Analyzing trace with hash -632093304, now seen corresponding path program 1 times [2022-10-17 10:38:35,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:35,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43266566] [2022-10-17 10:38:35,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:35,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:38:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:38:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:38:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-17 10:38:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-17 10:38:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:38:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-17 10:38:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:38:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:38:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:38:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:38:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:38:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 10:38:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-17 10:38:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 10:38:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-17 10:38:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-17 10:38:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-17 10:38:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-17 10:38:36,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:36,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43266566] [2022-10-17 10:38:36,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43266566] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:36,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035085499] [2022-10-17 10:38:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:36,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:36,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:36,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:36,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:38:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:36,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:38:36,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-17 10:38:36,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:36,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035085499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:36,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:38:36,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-17 10:38:36,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089967266] [2022-10-17 10:38:36,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:36,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:38:36,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:36,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:38:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:38:36,671 INFO L87 Difference]: Start difference. First operand 423 states and 637 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-17 10:38:36,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:36,734 INFO L93 Difference]: Finished difference Result 657 states and 966 transitions. [2022-10-17 10:38:36,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:38:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 155 [2022-10-17 10:38:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:36,740 INFO L225 Difference]: With dead ends: 657 [2022-10-17 10:38:36,740 INFO L226 Difference]: Without dead ends: 426 [2022-10-17 10:38:36,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:38:36,743 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 1 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:36,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1268 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:36,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-10-17 10:38:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2022-10-17 10:38:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 329 states have (on average 1.5379939209726443) internal successors, (506), 333 states have internal predecessors, (506), 67 states have call successors, (67), 28 states have call predecessors, (67), 28 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2022-10-17 10:38:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 639 transitions. [2022-10-17 10:38:36,782 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 639 transitions. Word has length 155 [2022-10-17 10:38:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:36,783 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 639 transitions. [2022-10-17 10:38:36,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-17 10:38:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 639 transitions. [2022-10-17 10:38:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-17 10:38:36,787 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:36,788 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:36,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:37,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:37,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:37,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:37,011 INFO L85 PathProgramCache]: Analyzing trace with hash 246414571, now seen corresponding path program 1 times [2022-10-17 10:38:37,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:37,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218855704] [2022-10-17 10:38:37,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:37,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:38:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:38:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:38:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:38:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:38:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:38:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 10:38:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-17 10:38:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:38:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 10:38:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-17 10:38:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 10:38:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 10:38:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 10:38:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 10:38:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-17 10:38:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 10:38:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-17 10:38:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-17 10:38:37,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:37,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218855704] [2022-10-17 10:38:37,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218855704] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:37,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558289543] [2022-10-17 10:38:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:37,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:37,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:37,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:37,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:38:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:37,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:38:37,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-17 10:38:37,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:37,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558289543] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:37,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:38:37,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-17 10:38:37,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805643736] [2022-10-17 10:38:37,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:37,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:38:37,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:37,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:38:37,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:38:37,828 INFO L87 Difference]: Start difference. First operand 425 states and 639 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-17 10:38:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:37,891 INFO L93 Difference]: Finished difference Result 898 states and 1370 transitions. [2022-10-17 10:38:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:38:37,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 164 [2022-10-17 10:38:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:37,900 INFO L225 Difference]: With dead ends: 898 [2022-10-17 10:38:37,900 INFO L226 Difference]: Without dead ends: 500 [2022-10-17 10:38:37,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:38:37,905 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 134 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:37,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1250 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-10-17 10:38:37,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 492. [2022-10-17 10:38:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 382 states have (on average 1.557591623036649) internal successors, (595), 386 states have internal predecessors, (595), 81 states have call successors, (81), 28 states have call predecessors, (81), 28 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2022-10-17 10:38:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 756 transitions. [2022-10-17 10:38:37,969 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 756 transitions. Word has length 164 [2022-10-17 10:38:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:37,971 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 756 transitions. [2022-10-17 10:38:37,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-17 10:38:37,974 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 756 transitions. [2022-10-17 10:38:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-17 10:38:37,979 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:37,979 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] [2022-10-17 10:38:38,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:38,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:38,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:38,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:38,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1731772380, now seen corresponding path program 1 times [2022-10-17 10:38:38,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:38,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443595223] [2022-10-17 10:38:38,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:38,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:38:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:38:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:38:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:38:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:38:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:38:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:38:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 10:38:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:38:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 10:38:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-17 10:38:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-17 10:38:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-17 10:38:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-17 10:38:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-17 10:38:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-17 10:38:38,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443595223] [2022-10-17 10:38:38,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443595223] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750303866] [2022-10-17 10:38:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:38,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:38,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:38,573 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:38,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:38:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:38,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:38:38,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-17 10:38:38,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:38,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750303866] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:38,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:38:38,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-10-17 10:38:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710009965] [2022-10-17 10:38:38,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:38,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:38:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:38:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:38:38,971 INFO L87 Difference]: Start difference. First operand 492 states and 756 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 10:38:39,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:39,053 INFO L93 Difference]: Finished difference Result 975 states and 1502 transitions. [2022-10-17 10:38:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:38:39,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2022-10-17 10:38:39,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:39,058 INFO L225 Difference]: With dead ends: 975 [2022-10-17 10:38:39,058 INFO L226 Difference]: Without dead ends: 494 [2022-10-17 10:38:39,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:38:39,062 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 152 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:39,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2337 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-10-17 10:38:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2022-10-17 10:38:39,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 383 states have (on average 1.556135770234987) internal successors, (596), 388 states have internal predecessors, (596), 81 states have call successors, (81), 28 states have call predecessors, (81), 29 states have return successors, (82), 79 states have call predecessors, (82), 80 states have call successors, (82) [2022-10-17 10:38:39,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 759 transitions. [2022-10-17 10:38:39,094 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 759 transitions. Word has length 146 [2022-10-17 10:38:39,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:39,094 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 759 transitions. [2022-10-17 10:38:39,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 10:38:39,095 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 759 transitions. [2022-10-17 10:38:39,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-17 10:38:39,099 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:39,100 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-17 10:38:39,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:39,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:39,326 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash 356557940, now seen corresponding path program 1 times [2022-10-17 10:38:39,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:39,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5747887] [2022-10-17 10:38:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:39,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:38:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-17 10:38:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-17 10:38:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-17 10:38:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:38:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-17 10:38:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:38:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-17 10:38:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-17 10:38:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 10:38:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-17 10:38:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 10:38:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-17 10:38:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-17 10:38:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 10:38:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5747887] [2022-10-17 10:38:39,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5747887] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792430282] [2022-10-17 10:38:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:39,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:39,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:39,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:39,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:38:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:38:40,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-17 10:38:40,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:40,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792430282] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:40,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:38:40,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-10-17 10:38:40,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877557179] [2022-10-17 10:38:40,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:40,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:38:40,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:40,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:38:40,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:38:40,110 INFO L87 Difference]: Start difference. First operand 494 states and 759 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 10:38:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:40,201 INFO L93 Difference]: Finished difference Result 977 states and 1507 transitions. [2022-10-17 10:38:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:38:40,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2022-10-17 10:38:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:40,207 INFO L225 Difference]: With dead ends: 977 [2022-10-17 10:38:40,208 INFO L226 Difference]: Without dead ends: 496 [2022-10-17 10:38:40,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:38:40,211 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 151 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:40,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2326 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-10-17 10:38:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2022-10-17 10:38:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 384 states have (on average 1.5546875) internal successors, (597), 390 states have internal predecessors, (597), 81 states have call successors, (81), 28 states have call predecessors, (81), 30 states have return successors, (87), 79 states have call predecessors, (87), 80 states have call successors, (87) [2022-10-17 10:38:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 765 transitions. [2022-10-17 10:38:40,271 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 765 transitions. Word has length 147 [2022-10-17 10:38:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:40,273 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 765 transitions. [2022-10-17 10:38:40,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 10:38:40,273 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 765 transitions. [2022-10-17 10:38:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-17 10:38:40,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:40,278 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] [2022-10-17 10:38:40,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:40,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:40,499 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:40,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:40,499 INFO L85 PathProgramCache]: Analyzing trace with hash 961994509, now seen corresponding path program 1 times [2022-10-17 10:38:40,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:40,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406888470] [2022-10-17 10:38:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:40,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:38:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:38:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-17 10:38:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-17 10:38:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:38:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:38:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:38:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-17 10:38:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-17 10:38:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:38:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-17 10:38:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 10:38:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 10:38:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-17 10:38:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-17 10:38:40,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:40,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406888470] [2022-10-17 10:38:40,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406888470] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:40,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:40,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:38:40,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862191320] [2022-10-17 10:38:40,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:40,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:38:40,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:38:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:38:40,804 INFO L87 Difference]: Start difference. First operand 496 states and 765 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 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) [2022-10-17 10:38:43,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:43,397 INFO L93 Difference]: Finished difference Result 1108 states and 1730 transitions. [2022-10-17 10:38:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:38:43,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 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 148 [2022-10-17 10:38:43,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:43,404 INFO L225 Difference]: With dead ends: 1108 [2022-10-17 10:38:43,404 INFO L226 Difference]: Without dead ends: 635 [2022-10-17 10:38:43,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:38:43,407 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 1569 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:43,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 1685 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 10:38:43,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-10-17 10:38:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 496. [2022-10-17 10:38:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 384 states have (on average 1.5546875) internal successors, (597), 390 states have internal predecessors, (597), 81 states have call successors, (81), 28 states have call predecessors, (81), 30 states have return successors, (86), 79 states have call predecessors, (86), 80 states have call successors, (86) [2022-10-17 10:38:43,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 764 transitions. [2022-10-17 10:38:43,478 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 764 transitions. Word has length 148 [2022-10-17 10:38:43,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:43,478 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 764 transitions. [2022-10-17 10:38:43,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 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) [2022-10-17 10:38:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 764 transitions. [2022-10-17 10:38:43,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-10-17 10:38:43,483 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:43,483 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:43,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:38:43,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:43,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1600900688, now seen corresponding path program 1 times [2022-10-17 10:38:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:43,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180217005] [2022-10-17 10:38:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:43,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:38:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-17 10:38:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:38:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:38:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:38:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:38:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:38:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-17 10:38:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:38:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-17 10:38:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-17 10:38:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 10:38:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 10:38:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-17 10:38:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-17 10:38:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-17 10:38:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-17 10:38:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-17 10:38:43,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:43,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180217005] [2022-10-17 10:38:43,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180217005] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:43,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:43,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:38:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505563263] [2022-10-17 10:38:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:43,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:38:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:38:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:38:43,801 INFO L87 Difference]: Start difference. First operand 496 states and 764 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-10-17 10:38:46,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:46,227 INFO L93 Difference]: Finished difference Result 1110 states and 1733 transitions. [2022-10-17 10:38:46,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:38:46,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 168 [2022-10-17 10:38:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:46,236 INFO L225 Difference]: With dead ends: 1110 [2022-10-17 10:38:46,236 INFO L226 Difference]: Without dead ends: 637 [2022-10-17 10:38:46,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:38:46,240 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 1559 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:46,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 1690 Invalid, 2962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-17 10:38:46,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-10-17 10:38:46,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 498. [2022-10-17 10:38:46,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.5532467532467533) internal successors, (598), 392 states have internal predecessors, (598), 81 states have call successors, (81), 28 states have call predecessors, (81), 31 states have return successors, (88), 79 states have call predecessors, (88), 80 states have call successors, (88) [2022-10-17 10:38:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 767 transitions. [2022-10-17 10:38:46,334 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 767 transitions. Word has length 168 [2022-10-17 10:38:46,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:46,335 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 767 transitions. [2022-10-17 10:38:46,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2022-10-17 10:38:46,335 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 767 transitions. [2022-10-17 10:38:46,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-17 10:38:46,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:46,339 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:46,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:38:46,340 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1948880879, now seen corresponding path program 1 times [2022-10-17 10:38:46,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:46,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825372549] [2022-10-17 10:38:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:46,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:38:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:38:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:38:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:38:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:38:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:38:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 10:38:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:38:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-17 10:38:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-17 10:38:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-17 10:38:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-17 10:38:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-17 10:38:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-17 10:38:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-17 10:38:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-17 10:38:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-17 10:38:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-17 10:38:46,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:46,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825372549] [2022-10-17 10:38:46,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825372549] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:46,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:46,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:38:46,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343738899] [2022-10-17 10:38:46,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:46,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:38:46,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:46,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:38:46,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:38:46,697 INFO L87 Difference]: Start difference. First operand 498 states and 767 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-10-17 10:38:49,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:49,934 INFO L93 Difference]: Finished difference Result 1108 states and 1728 transitions. [2022-10-17 10:38:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:38:49,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 169 [2022-10-17 10:38:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:49,940 INFO L225 Difference]: With dead ends: 1108 [2022-10-17 10:38:49,940 INFO L226 Difference]: Without dead ends: 637 [2022-10-17 10:38:49,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-10-17 10:38:49,943 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 1701 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4308 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 4951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 4308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:49,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 2047 Invalid, 4951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 4308 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-17 10:38:49,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-10-17 10:38:49,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 498. [2022-10-17 10:38:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.5532467532467533) internal successors, (598), 392 states have internal predecessors, (598), 81 states have call successors, (81), 28 states have call predecessors, (81), 31 states have return successors, (87), 79 states have call predecessors, (87), 80 states have call successors, (87) [2022-10-17 10:38:50,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 766 transitions. [2022-10-17 10:38:50,005 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 766 transitions. Word has length 169 [2022-10-17 10:38:50,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:50,005 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 766 transitions. [2022-10-17 10:38:50,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-10-17 10:38:50,006 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 766 transitions. [2022-10-17 10:38:50,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-10-17 10:38:50,009 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:50,010 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, 1] [2022-10-17 10:38:50,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:38:50,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:50,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1825074369, now seen corresponding path program 1 times [2022-10-17 10:38:50,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:50,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605494304] [2022-10-17 10:38:50,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:50,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:38:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:38:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:38:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:38:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 10:38:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-17 10:38:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 10:38:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 10:38:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-17 10:38:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-17 10:38:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 10:38:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-17 10:38:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 10:38:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-17 10:38:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:50,337 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 10:38:50,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:50,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605494304] [2022-10-17 10:38:50,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605494304] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:50,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:50,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:38:50,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422162813] [2022-10-17 10:38:50,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:50,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:38:50,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:50,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:38:50,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:38:50,341 INFO L87 Difference]: Start difference. First operand 498 states and 766 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) [2022-10-17 10:38:53,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:53,554 INFO L93 Difference]: Finished difference Result 1110 states and 1734 transitions. [2022-10-17 10:38:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:38:53,555 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 [2022-10-17 10:38:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:53,561 INFO L225 Difference]: With dead ends: 1110 [2022-10-17 10:38:53,562 INFO L226 Difference]: Without dead ends: 639 [2022-10-17 10:38:53,564 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 [2022-10-17 10:38:53,567 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 1697 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4282 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 4943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 4282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:53,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 2044 Invalid, 4943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 4282 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-17 10:38:53,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-10-17 10:38:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 500. [2022-10-17 10:38:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 386 states have (on average 1.5518134715025906) internal successors, (599), 394 states have internal predecessors, (599), 81 states have call successors, (81), 28 states have call predecessors, (81), 32 states have return successors, (92), 79 states have call predecessors, (92), 80 states have call successors, (92) [2022-10-17 10:38:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 772 transitions. [2022-10-17 10:38:53,631 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 772 transitions. Word has length 151 [2022-10-17 10:38:53,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:53,632 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 772 transitions. [2022-10-17 10:38:53,633 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) [2022-10-17 10:38:53,633 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 772 transitions. [2022-10-17 10:38:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-17 10:38:53,637 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:53,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:53,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:38:53,638 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:53,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:53,638 INFO L85 PathProgramCache]: Analyzing trace with hash -190353900, now seen corresponding path program 1 times [2022-10-17 10:38:53,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:53,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341659883] [2022-10-17 10:38:53,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:53,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:38:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:38:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-17 10:38:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:38:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-17 10:38:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 10:38:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 10:38:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 10:38:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-17 10:38:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:38:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-17 10:38:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-17 10:38:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:53,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 10:38:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-17 10:38:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-17 10:38:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-17 10:38:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-17 10:38:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:54,010 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-17 10:38:54,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:54,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341659883] [2022-10-17 10:38:54,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341659883] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:54,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895637891] [2022-10-17 10:38:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:54,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:54,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:54,015 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:54,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f839a35-34b3-431d-8375-033e3a1587f0/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:38:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:54,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:38:54,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-10-17 10:38:54,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:38:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-10-17 10:38:54,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895637891] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:38:54,544 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:38:54,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-10-17 10:38:54,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822879226] [2022-10-17 10:38:54,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:38:54,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-17 10:38:54,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-17 10:38:54,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:38:54,547 INFO L87 Difference]: Start difference. First operand 500 states and 772 transitions. Second operand has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) [2022-10-17 10:38:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:58,998 INFO L93 Difference]: Finished difference Result 1969 states and 3292 transitions. [2022-10-17 10:38:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-17 10:38:58,999 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.285714285714286) internal successors, (172), 11 states have internal predecessors, (172), 4 states have call successors, (49), 6 states have call predecessors, (49), 3 states have return successors, (40), 3 states have call predecessors, (40), 4 states have call successors, (40) Word has length 171 [2022-10-17 10:38:58,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:59,013 INFO L225 Difference]: With dead ends: 1969 [2022-10-17 10:38:59,014 INFO L226 Difference]: Without dead ends: 1500 [2022-10-17 10:38:59,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-10-17 10:38:59,018 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 4177 mSDsluCounter, 3252 mSDsCounter, 0 mSdLazyCounter, 5082 mSolverCounterSat, 1501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4179 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 6583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 5082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:59,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4179 Valid, 4126 Invalid, 6583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1501 Valid, 5082 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-17 10:38:59,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states.