./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:57:38,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:57:38,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:57:38,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:57:38,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:57:38,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:57:38,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:57:38,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:57:38,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:57:38,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:57:38,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:57:38,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:57:38,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:57:38,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:57:38,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:57:38,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:57:38,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:57:38,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:57:38,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:57:38,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:57:38,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:57:38,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:57:38,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:57:38,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:57:38,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:57:38,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:57:38,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:57:38,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:57:38,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:57:38,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:57:38,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:57:38,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:57:38,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:57:38,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:57:38,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:57:38,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:57:38,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:57:38,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:57:38,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:57:38,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:57:38,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:57:38,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:57:38,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:57:38,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:57:38,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:57:38,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:57:38,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:57:38,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:57:38,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:57:38,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:57:38,682 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:57:38,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:57:38,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:57:38,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:57:38,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:57:38,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:57:38,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:57:38,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:57:38,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:57:38,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:57:38,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:57:38,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:57:38,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:57:38,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:57:38,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:57:38,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:57:38,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:57:38,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:57:38,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:57:38,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:57:38,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:57:38,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:57:38,687 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:57:38,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:57:38,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:57:38,688 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_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00530584ceb95509e59a4223c6066e974815f5b40475a70fc9a47cceec3e0b2f [2022-11-02 20:57:39,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:57:39,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:57:39,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:57:39,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:57:39,072 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:57:39,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-11-02 20:57:39,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/data/9e842ace0/0af75a3555f34a84a7e116c84212fd53/FLAGb23f28993 [2022-11-02 20:57:39,835 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:57:39,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c [2022-11-02 20:57:39,865 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/data/9e842ace0/0af75a3555f34a84a7e116c84212fd53/FLAGb23f28993 [2022-11-02 20:57:40,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/data/9e842ace0/0af75a3555f34a84a7e116c84212fd53 [2022-11-02 20:57:40,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:57:40,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:57:40,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:57:40,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:57:40,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:57:40,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:57:40" (1/1) ... [2022-11-02 20:57:40,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea1b26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:40, skipping insertion in model container [2022-11-02 20:57:40,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:57:40" (1/1) ... [2022-11-02 20:57:40,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:57:40,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:57:40,772 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_4b343da8-228a-41a2-9a85-acff43d2bdcc/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-11-02 20:57:40,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:57:40,997 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:57:41,094 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_4b343da8-228a-41a2-9a85-acff43d2bdcc/sv-benchmarks/c/product-lines/email_spec11_product27.cil.c[34014,34027] [2022-11-02 20:57:41,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:57:41,229 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:57:41,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41 WrapperNode [2022-11-02 20:57:41,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:57:41,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:57:41,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:57:41,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:57:41,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,362 INFO L138 Inliner]: procedures = 133, calls = 227, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1125 [2022-11-02 20:57:41,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:57:41,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:57:41,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:57:41,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:57:41,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,437 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:57:41,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:57:41,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:57:41,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:57:41,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (1/1) ... [2022-11-02 20:57:41,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:57:41,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:41,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:57:41,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:57:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-02 20:57:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-02 20:57:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-02 20:57:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-02 20:57:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-02 20:57:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-02 20:57:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-02 20:57:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-02 20:57:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-02 20:57:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-02 20:57:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-02 20:57:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-02 20:57:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-02 20:57:41,582 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-02 20:57:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-02 20:57:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-02 20:57:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-02 20:57:41,584 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-02 20:57:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-02 20:57:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-02 20:57:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-02 20:57:41,585 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-02 20:57:41,585 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-02 20:57:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-02 20:57:41,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-02 20:57:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:57:41,586 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-02 20:57:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-02 20:57:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-02 20:57:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-02 20:57:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-02 20:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-02 20:57:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-02 20:57:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-02 20:57:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-02 20:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-02 20:57:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-02 20:57:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-02 20:57:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-02 20:57:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-02 20:57:41,590 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-02 20:57:41,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-02 20:57:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:57:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-02 20:57:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-02 20:57:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-02 20:57:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-02 20:57:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:57:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:57:41,846 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:57:41,859 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:57:43,015 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:57:43,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:57:43,026 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:57:43,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:43 BoogieIcfgContainer [2022-11-02 20:57:43,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:57:43,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:57:43,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:57:43,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:57:43,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:57:40" (1/3) ... [2022-11-02 20:57:43,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb44a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:43, skipping insertion in model container [2022-11-02 20:57:43,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:41" (2/3) ... [2022-11-02 20:57:43,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb44a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:43, skipping insertion in model container [2022-11-02 20:57:43,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:43" (3/3) ... [2022-11-02 20:57:43,042 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product27.cil.c [2022-11-02 20:57:43,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:57:43,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:57:43,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:57:43,140 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;@4d7c5d56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:57:43,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:57:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-02 20:57:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-02 20:57:43,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:43,170 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:43,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:43,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:43,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2076588138, now seen corresponding path program 1 times [2022-11-02 20:57:43,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:43,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11607649] [2022-11-02 20:57:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:43,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:43,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:57:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:43,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:57:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:57:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:43,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:57:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:57:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 20:57:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:57:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:57:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 20:57:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 20:57:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,050 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-02 20:57:44,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:44,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11607649] [2022-11-02 20:57:44,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11607649] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:44,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329394609] [2022-11-02 20:57:44,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:44,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:44,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:44,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:44,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:57:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:44,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:57:44,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-02 20:57:44,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:44,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329394609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:44,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:44,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-02 20:57:44,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061921032] [2022-11-02 20:57:44,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:44,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:57:44,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:57:44,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:57:44,552 INFO L87 Difference]: Start difference. First operand has 398 states, 316 states have (on average 1.5664556962025316) internal successors, (495), 319 states have internal predecessors, (495), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:44,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:44,662 INFO L93 Difference]: Finished difference Result 598 states and 904 transitions. [2022-11-02 20:57:44,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:57:44,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2022-11-02 20:57:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:44,681 INFO L225 Difference]: With dead ends: 598 [2022-11-02 20:57:44,682 INFO L226 Difference]: Without dead ends: 391 [2022-11-02 20:57:44,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:57:44,696 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:44,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:44,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-02 20:57:44,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2022-11-02 20:57:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 310 states have (on average 1.5612903225806452) internal successors, (484), 312 states have internal predecessors, (484), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-02 20:57:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 599 transitions. [2022-11-02 20:57:44,809 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 599 transitions. Word has length 107 [2022-11-02 20:57:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:44,811 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 599 transitions. [2022-11-02 20:57:44,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 599 transitions. [2022-11-02 20:57:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-02 20:57:44,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:44,819 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:44,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:45,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:45,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:45,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:45,038 INFO L85 PathProgramCache]: Analyzing trace with hash -631712386, now seen corresponding path program 1 times [2022-11-02 20:57:45,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:45,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521946844] [2022-11-02 20:57:45,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:45,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:57:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:57:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:57:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:57:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-02 20:57:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:57:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-02 20:57:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 20:57:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:57:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-02 20:57:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-02 20:57:45,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:45,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521946844] [2022-11-02 20:57:45,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521946844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:45,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206719243] [2022-11-02 20:57:45,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:45,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:45,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:45,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:45,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:57:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:45,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:57:45,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-02 20:57:45,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:45,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206719243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:45,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:45,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-02 20:57:45,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91197603] [2022-11-02 20:57:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:45,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:45,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:45,958 INFO L87 Difference]: Start difference. First operand 391 states and 599 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:45,994 INFO L93 Difference]: Finished difference Result 588 states and 882 transitions. [2022-11-02 20:57:45,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:45,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-11-02 20:57:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:45,999 INFO L225 Difference]: With dead ends: 588 [2022-11-02 20:57:45,999 INFO L226 Difference]: Without dead ends: 394 [2022-11-02 20:57:46,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:46,008 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:46,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:46,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-02 20:57:46,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 393. [2022-11-02 20:57:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 312 states have (on average 1.5576923076923077) internal successors, (486), 314 states have internal predecessors, (486), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-02 20:57:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2022-11-02 20:57:46,055 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 108 [2022-11-02 20:57:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:46,058 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2022-11-02 20:57:46,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2022-11-02 20:57:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-02 20:57:46,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:46,064 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:46,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:46,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-02 20:57:46,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:46,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:46,269 INFO L85 PathProgramCache]: Analyzing trace with hash -234820301, now seen corresponding path program 1 times [2022-11-02 20:57:46,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:46,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871013621] [2022-11-02 20:57:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:46,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:57:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:57:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:57:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 20:57:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 20:57:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:57:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 20:57:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 20:57:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:57:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:57:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-02 20:57:46,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:46,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871013621] [2022-11-02 20:57:46,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871013621] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:46,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911695251] [2022-11-02 20:57:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:46,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:46,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:46,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:46,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:57:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:46,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:57:46,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-02 20:57:46,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:46,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911695251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:46,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:46,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-02 20:57:46,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502330893] [2022-11-02 20:57:46,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:46,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:46,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:46,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:46,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:46,946 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:46,980 INFO L93 Difference]: Finished difference Result 839 states and 1302 transitions. [2022-11-02 20:57:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:46,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2022-11-02 20:57:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:46,985 INFO L225 Difference]: With dead ends: 839 [2022-11-02 20:57:46,985 INFO L226 Difference]: Without dead ends: 473 [2022-11-02 20:57:46,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:57:46,988 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 142 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:46,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1177 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:46,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-02 20:57:47,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 465. [2022-11-02 20:57:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 370 states have (on average 1.5756756756756756) internal successors, (583), 372 states have internal predecessors, (583), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2022-11-02 20:57:47,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 726 transitions. [2022-11-02 20:57:47,035 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 726 transitions. Word has length 117 [2022-11-02 20:57:47,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:47,037 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 726 transitions. [2022-11-02 20:57:47,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:57:47,038 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 726 transitions. [2022-11-02 20:57:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-02 20:57:47,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:47,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:47,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:47,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:47,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1444038165, now seen corresponding path program 1 times [2022-11-02 20:57:47,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:47,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036104180] [2022-11-02 20:57:47,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:47,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 20:57:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:57:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:57:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:57:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 20:57:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:57:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-02 20:57:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:57:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:57:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:57:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-02 20:57:47,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:47,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036104180] [2022-11-02 20:57:47,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036104180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:47,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108857394] [2022-11-02 20:57:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:47,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:47,546 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:47,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:57:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:47,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:57:47,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:57:47,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:47,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108857394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:47,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:47,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-02 20:57:47,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125092269] [2022-11-02 20:57:47,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:47,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:57:47,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:47,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:57:47,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:57:47,961 INFO L87 Difference]: Start difference. First operand 465 states and 726 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:48,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:48,037 INFO L93 Difference]: Finished difference Result 921 states and 1442 transitions. [2022-11-02 20:57:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:57:48,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2022-11-02 20:57:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:48,041 INFO L225 Difference]: With dead ends: 921 [2022-11-02 20:57:48,041 INFO L226 Difference]: Without dead ends: 467 [2022-11-02 20:57:48,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:57:48,044 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 160 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:48,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:48,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-02 20:57:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-11-02 20:57:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 371 states have (on average 1.5741239892183287) internal successors, (584), 374 states have internal predecessors, (584), 72 states have call successors, (72), 22 states have call predecessors, (72), 23 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2022-11-02 20:57:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 729 transitions. [2022-11-02 20:57:48,079 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 729 transitions. Word has length 118 [2022-11-02 20:57:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:48,080 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 729 transitions. [2022-11-02 20:57:48,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 729 transitions. [2022-11-02 20:57:48,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-02 20:57:48,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:48,084 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:48,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-02 20:57:48,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:48,310 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:48,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:48,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1777333829, now seen corresponding path program 1 times [2022-11-02 20:57:48,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:48,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311730749] [2022-11-02 20:57:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:48,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-02 20:57:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-02 20:57:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 20:57:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-02 20:57:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-02 20:57:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 20:57:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:57:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 20:57:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-02 20:57:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-02 20:57:48,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:48,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311730749] [2022-11-02 20:57:48,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311730749] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:57:48,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743331480] [2022-11-02 20:57:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:48,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:48,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:48,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:57:48,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:57:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:48,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:57:48,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-02 20:57:49,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:49,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743331480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:49,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:57:49,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-02 20:57:49,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618654706] [2022-11-02 20:57:49,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:49,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:57:49,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:49,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:57:49,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:57:49,010 INFO L87 Difference]: Start difference. First operand 467 states and 729 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:49,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:49,096 INFO L93 Difference]: Finished difference Result 923 states and 1447 transitions. [2022-11-02 20:57:49,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:57:49,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2022-11-02 20:57:49,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:49,100 INFO L225 Difference]: With dead ends: 923 [2022-11-02 20:57:49,100 INFO L226 Difference]: Without dead ends: 469 [2022-11-02 20:57:49,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:57:49,104 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 159 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:49,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:49,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-02 20:57:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-11-02 20:57:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-11-02 20:57:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 735 transitions. [2022-11-02 20:57:49,148 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 735 transitions. Word has length 119 [2022-11-02 20:57:49,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:49,148 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 735 transitions. [2022-11-02 20:57:49,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:49,149 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 735 transitions. [2022-11-02 20:57:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-02 20:57:49,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:49,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:49,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:49,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:49,378 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:49,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:49,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1938958555, now seen corresponding path program 1 times [2022-11-02 20:57:49,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:49,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728793120] [2022-11-02 20:57:49,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:49,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-02 20:57:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-02 20:57:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 20:57:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:57:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:57:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-02 20:57:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-02 20:57:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 20:57:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-02 20:57:49,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:49,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728793120] [2022-11-02 20:57:49,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728793120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:49,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:49,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:57:49,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465412463] [2022-11-02 20:57:49,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:49,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:57:49,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:49,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:57:49,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:57:49,682 INFO L87 Difference]: Start difference. First operand 469 states and 735 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:52,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:52,715 INFO L93 Difference]: Finished difference Result 1119 states and 1783 transitions. [2022-11-02 20:57:52,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:57:52,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2022-11-02 20:57:52,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:52,723 INFO L225 Difference]: With dead ends: 1119 [2022-11-02 20:57:52,723 INFO L226 Difference]: Without dead ends: 673 [2022-11-02 20:57:52,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:57:52,728 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 1489 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2615 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 3186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 2615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:52,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1780 Invalid, 3186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 2615 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-02 20:57:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-02 20:57:52,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 469. [2022-11-02 20:57:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 372 states have (on average 1.5725806451612903) internal successors, (585), 376 states have internal predecessors, (585), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2022-11-02 20:57:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 734 transitions. [2022-11-02 20:57:52,809 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 734 transitions. Word has length 120 [2022-11-02 20:57:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:52,811 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 734 transitions. [2022-11-02 20:57:52,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 734 transitions. [2022-11-02 20:57:52,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-02 20:57:52,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:52,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:52,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:57:52,815 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:52,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1280623071, now seen corresponding path program 2 times [2022-11-02 20:57:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:52,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785444447] [2022-11-02 20:57:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:52,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:52,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-02 20:57:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 20:57:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:57:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-02 20:57:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 20:57:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-02 20:57:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:57:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:57:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-02 20:57:53,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:53,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785444447] [2022-11-02 20:57:53,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785444447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:53,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:53,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:57:53,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988183363] [2022-11-02 20:57:53,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:53,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:57:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:53,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:57:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:57:53,087 INFO L87 Difference]: Start difference. First operand 469 states and 734 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:56,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:56,247 INFO L93 Difference]: Finished difference Result 1121 states and 1786 transitions. [2022-11-02 20:57:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:57:56,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2022-11-02 20:57:56,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:56,253 INFO L225 Difference]: With dead ends: 1121 [2022-11-02 20:57:56,253 INFO L226 Difference]: Without dead ends: 675 [2022-11-02 20:57:56,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:57:56,256 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 1484 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 566 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 3195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:56,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1781 Invalid, 3195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-02 20:57:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-02 20:57:56,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 471. [2022-11-02 20:57:56,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2022-11-02 20:57:56,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2022-11-02 20:57:56,303 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 121 [2022-11-02 20:57:56,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:56,304 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2022-11-02 20:57:56,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-02 20:57:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2022-11-02 20:57:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-02 20:57:56,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:56,307 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:56,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:57:56,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:56,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash -801045568, now seen corresponding path program 1 times [2022-11-02 20:57:56,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:56,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401437263] [2022-11-02 20:57:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:56,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:57:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:57:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:57:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:57:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:57:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:57:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-02 20:57:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 20:57:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:57:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:57:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:57:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:57:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-02 20:57:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:56,620 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-02 20:57:56,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:56,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401437263] [2022-11-02 20:57:56,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401437263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:56,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:56,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:57:56,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984677320] [2022-11-02 20:57:56,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:56,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:57:56,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:57:56,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:57:56,623 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:58:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:00,815 INFO L93 Difference]: Finished difference Result 1119 states and 1781 transitions. [2022-11-02 20:58:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:58:00,816 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 122 [2022-11-02 20:58:00,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:00,821 INFO L225 Difference]: With dead ends: 1119 [2022-11-02 20:58:00,821 INFO L226 Difference]: Without dead ends: 675 [2022-11-02 20:58:00,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:58:00,824 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 1628 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4706 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 5324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 4706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:00,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 2158 Invalid, 5324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 4706 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-02 20:58:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-02 20:58:00,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 471. [2022-11-02 20:58:00,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 373 states have (on average 1.5710455764075066) internal successors, (586), 378 states have internal predecessors, (586), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2022-11-02 20:58:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2022-11-02 20:58:00,907 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 122 [2022-11-02 20:58:00,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:00,908 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2022-11-02 20:58:00,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:58:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2022-11-02 20:58:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-02 20:58:00,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:00,911 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:00,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:58:00,911 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:00,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash 554235044, now seen corresponding path program 2 times [2022-11-02 20:58:00,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:00,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787355323] [2022-11-02 20:58:00,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 20:58:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:58:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 20:58:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 20:58:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:58:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:58:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:58:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-02 20:58:01,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:01,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787355323] [2022-11-02 20:58:01,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787355323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:01,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:01,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:58:01,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677680839] [2022-11-02 20:58:01,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:01,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:58:01,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:01,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:58:01,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:58:01,178 INFO L87 Difference]: Start difference. First operand 471 states and 736 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:58:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:05,132 INFO L93 Difference]: Finished difference Result 1121 states and 1787 transitions. [2022-11-02 20:58:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:58:05,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2022-11-02 20:58:05,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:05,137 INFO L225 Difference]: With dead ends: 1121 [2022-11-02 20:58:05,138 INFO L226 Difference]: Without dead ends: 677 [2022-11-02 20:58:05,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:58:05,140 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 1625 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4714 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 5335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 4714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:05,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 2157 Invalid, 5335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 4714 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-02 20:58:05,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-11-02 20:58:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 473. [2022-11-02 20:58:05,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 374 states have (on average 1.5695187165775402) internal successors, (587), 380 states have internal predecessors, (587), 72 states have call successors, (72), 22 states have call predecessors, (72), 26 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2022-11-02 20:58:05,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 742 transitions. [2022-11-02 20:58:05,196 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 742 transitions. Word has length 123 [2022-11-02 20:58:05,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:05,196 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 742 transitions. [2022-11-02 20:58:05,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-02 20:58:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 742 transitions. [2022-11-02 20:58:05,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-02 20:58:05,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:05,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:05,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:58:05,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:05,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:05,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1056972187, now seen corresponding path program 1 times [2022-11-02 20:58:05,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:05,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175740485] [2022-11-02 20:58:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:05,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-02 20:58:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:58:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:58:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:58:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:58:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-02 20:58:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-02 20:58:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,478 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-02 20:58:05,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:05,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175740485] [2022-11-02 20:58:05,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175740485] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:58:05,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411419033] [2022-11-02 20:58:05,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:05,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:58:05,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:58:05,481 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:58:05,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:58:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 1170 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:58:05,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:05,865 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:05,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:58:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:06,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411419033] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:58:06,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:58:06,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-02 20:58:06,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695490604] [2022-11-02 20:58:06,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:58:06,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 20:58:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 20:58:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:58:06,003 INFO L87 Difference]: Start difference. First operand 473 states and 742 transitions. Second operand has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-02 20:58:11,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:11,504 INFO L93 Difference]: Finished difference Result 2030 states and 3425 transitions. [2022-11-02 20:58:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:58:11,504 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 124 [2022-11-02 20:58:11,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:11,514 INFO L225 Difference]: With dead ends: 2030 [2022-11-02 20:58:11,514 INFO L226 Difference]: Without dead ends: 1588 [2022-11-02 20:58:11,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:58:11,518 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 4404 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 5489 mSolverCounterSat, 1678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4406 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 7167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 5489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:11,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4406 Valid, 4649 Invalid, 7167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1678 Valid, 5489 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-02 20:58:11,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2022-11-02 20:58:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 916. [2022-11-02 20:58:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 738 states have (on average 1.6165311653116532) internal successors, (1193), 744 states have internal predecessors, (1193), 151 states have call successors, (151), 22 states have call predecessors, (151), 26 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2022-11-02 20:58:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1516 transitions. [2022-11-02 20:58:11,631 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1516 transitions. Word has length 124 [2022-11-02 20:58:11,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:11,632 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1516 transitions. [2022-11-02 20:58:11,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-02 20:58:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1516 transitions. [2022-11-02 20:58:11,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-02 20:58:11,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:11,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:11,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-02 20:58:11,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b343da8-228a-41a2-9a85-acff43d2bdcc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:58:11,862 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1032995972, now seen corresponding path program 1 times [2022-11-02 20:58:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:11,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505968134] [2022-11-02 20:58:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:11,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 20:58:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 20:58:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-02 20:58:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-02 20:58:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:12,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:58:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:12,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-02 20:58:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:12,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-02 20:58:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:12,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:12,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505968134] [2022-11-02 20:58:12,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505968134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:12,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:12,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:12,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71490529] [2022-11-02 20:58:12,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:12,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:12,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:12,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:12,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:12,010 INFO L87 Difference]: Start difference. First operand 916 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:14,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:14,346 INFO L93 Difference]: Finished difference Result 2381 states and 4033 transitions. [2022-11-02 20:58:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:14,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-11-02 20:58:14,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:14,356 INFO L225 Difference]: With dead ends: 2381 [2022-11-02 20:58:14,357 INFO L226 Difference]: Without dead ends: 1543 [2022-11-02 20:58:14,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:14,361 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 1479 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:14,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1600 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:58:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-11-02 20:58:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1331. [2022-11-02 20:58:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 1074 states have (on average 1.632216014897579) internal successors, (1753), 1080 states have internal predecessors, (1753), 230 states have call successors, (230), 22 states have call predecessors, (230), 26 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2022-11-02 20:58:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2244 transitions. [2022-11-02 20:58:14,540 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2244 transitions. Word has length 127 [2022-11-02 20:58:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:14,540 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 2244 transitions. [2022-11-02 20:58:14,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2244 transitions. [2022-11-02 20:58:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-02 20:58:14,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:14,548 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:14,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:58:14,548 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:14,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:14,549 INFO L85 PathProgramCache]: Analyzing trace with hash -534050665, now seen corresponding path program 1 times [2022-11-02 20:58:14,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:14,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615217340] [2022-11-02 20:58:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:14,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:58:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 20:58:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 20:58:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:58:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:58:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-02 20:58:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-02 20:58:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:14,680 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:14,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:14,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615217340] [2022-11-02 20:58:14,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615217340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:14,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:14,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:14,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445255617] [2022-11-02 20:58:14,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:14,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:14,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:14,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:14,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:14,683 INFO L87 Difference]: Start difference. First operand 1331 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:17,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:17,117 INFO L93 Difference]: Finished difference Result 3420 states and 5846 transitions. [2022-11-02 20:58:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:17,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-11-02 20:58:17,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:17,132 INFO L225 Difference]: With dead ends: 3420 [2022-11-02 20:58:17,133 INFO L226 Difference]: Without dead ends: 2220 [2022-11-02 20:58:17,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:17,137 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 1477 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:17,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1583 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:58:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2022-11-02 20:58:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2008. [2022-11-02 20:58:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1632 states have (on average 1.639093137254902) internal successors, (2675), 1638 states have internal predecessors, (2675), 349 states have call successors, (349), 22 states have call predecessors, (349), 26 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2022-11-02 20:58:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 3404 transitions. [2022-11-02 20:58:17,380 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 3404 transitions. Word has length 128 [2022-11-02 20:58:17,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:17,380 INFO L495 AbstractCegarLoop]: Abstraction has 2008 states and 3404 transitions. [2022-11-02 20:58:17,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:17,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 3404 transitions. [2022-11-02 20:58:17,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-02 20:58:17,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:17,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:17,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:58:17,393 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:17,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:17,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1223020714, now seen corresponding path program 1 times [2022-11-02 20:58:17,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:17,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853340919] [2022-11-02 20:58:17,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:17,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:58:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 20:58:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-02 20:58:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 20:58:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:58:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:58:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 20:58:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:17,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:17,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853340919] [2022-11-02 20:58:17,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853340919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:17,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:17,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:17,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200562727] [2022-11-02 20:58:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:17,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:17,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:17,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:17,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:17,553 INFO L87 Difference]: Start difference. First operand 2008 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:20,003 INFO L93 Difference]: Finished difference Result 5005 states and 8625 transitions. [2022-11-02 20:58:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:20,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-11-02 20:58:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:20,025 INFO L225 Difference]: With dead ends: 5005 [2022-11-02 20:58:20,025 INFO L226 Difference]: Without dead ends: 3263 [2022-11-02 20:58:20,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:20,032 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 1475 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:20,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1582 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:58:20,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2022-11-02 20:58:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 3051. [2022-11-02 20:58:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 2513 states have (on average 1.6446478312773578) internal successors, (4133), 2519 states have internal predecessors, (4133), 511 states have call successors, (511), 22 states have call predecessors, (511), 26 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2022-11-02 20:58:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 5202 transitions. [2022-11-02 20:58:20,427 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 5202 transitions. Word has length 129 [2022-11-02 20:58:20,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:20,428 INFO L495 AbstractCegarLoop]: Abstraction has 3051 states and 5202 transitions. [2022-11-02 20:58:20,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 5202 transitions. [2022-11-02 20:58:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-02 20:58:20,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:20,442 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:20,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:58:20,442 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:20,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1804521560, now seen corresponding path program 1 times [2022-11-02 20:58:20,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:20,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651918] [2022-11-02 20:58:20,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:20,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:58:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:58:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 20:58:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:58:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-02 20:58:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:58:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-02 20:58:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:20,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:20,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651918] [2022-11-02 20:58:20,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:20,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:20,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:20,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196042047] [2022-11-02 20:58:20,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:20,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:20,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:20,578 INFO L87 Difference]: Start difference. First operand 3051 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:23,107 INFO L93 Difference]: Finished difference Result 7519 states and 13040 transitions. [2022-11-02 20:58:23,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:23,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2022-11-02 20:58:23,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:23,140 INFO L225 Difference]: With dead ends: 7519 [2022-11-02 20:58:23,141 INFO L226 Difference]: Without dead ends: 4953 [2022-11-02 20:58:23,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:23,150 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 1470 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:23,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1583 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:58:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2022-11-02 20:58:23,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 4741. [2022-11-02 20:58:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 3958 states have (on average 1.6485598787266296) internal successors, (6525), 3964 states have internal predecessors, (6525), 756 states have call successors, (756), 22 states have call predecessors, (756), 26 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2022-11-02 20:58:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 8110 transitions. [2022-11-02 20:58:23,843 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 8110 transitions. Word has length 130 [2022-11-02 20:58:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:23,844 INFO L495 AbstractCegarLoop]: Abstraction has 4741 states and 8110 transitions. [2022-11-02 20:58:23,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 8110 transitions. [2022-11-02 20:58:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-02 20:58:23,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:23,877 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:23,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:58:23,877 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1236037510, now seen corresponding path program 1 times [2022-11-02 20:58:23,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:23,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198722596] [2022-11-02 20:58:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:23,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-02 20:58:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:58:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:58:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 20:58:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-02 20:58:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-02 20:58:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-02 20:58:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:24,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:24,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198722596] [2022-11-02 20:58:24,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198722596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:24,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:24,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:24,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631219032] [2022-11-02 20:58:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:24,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:24,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:24,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:24,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:24,081 INFO L87 Difference]: Start difference. First operand 4741 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:26,810 INFO L93 Difference]: Finished difference Result 11720 states and 20417 transitions. [2022-11-02 20:58:26,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:26,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2022-11-02 20:58:26,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:26,862 INFO L225 Difference]: With dead ends: 11720 [2022-11-02 20:58:26,863 INFO L226 Difference]: Without dead ends: 7796 [2022-11-02 20:58:26,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:26,878 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 1470 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:26,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1602 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 20:58:26,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2022-11-02 20:58:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 7584. [2022-11-02 20:58:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 6308 states have (on average 1.6461636017755232) internal successors, (10384), 6314 states have internal predecessors, (10384), 1249 states have call successors, (1249), 22 states have call predecessors, (1249), 26 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2022-11-02 20:58:27,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 12999 transitions. [2022-11-02 20:58:27,834 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 12999 transitions. Word has length 131 [2022-11-02 20:58:27,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:27,835 INFO L495 AbstractCegarLoop]: Abstraction has 7584 states and 12999 transitions. [2022-11-02 20:58:27,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 12999 transitions. [2022-11-02 20:58:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-02 20:58:27,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:27,862 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:27,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:58:27,863 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:27,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1439988092, now seen corresponding path program 1 times [2022-11-02 20:58:27,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:27,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806754065] [2022-11-02 20:58:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:27,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 20:58:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-02 20:58:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-02 20:58:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-02 20:58:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:58:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 20:58:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-02 20:58:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:27,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:27,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806754065] [2022-11-02 20:58:27,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806754065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:27,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:27,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:27,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701227016] [2022-11-02 20:58:27,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:27,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:27,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:28,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:28,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:28,001 INFO L87 Difference]: Start difference. First operand 7584 states and 12999 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:31,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:31,438 INFO L93 Difference]: Finished difference Result 19335 states and 33693 transitions. [2022-11-02 20:58:31,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:31,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2022-11-02 20:58:31,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:31,499 INFO L225 Difference]: With dead ends: 19335 [2022-11-02 20:58:31,499 INFO L226 Difference]: Without dead ends: 12970 [2022-11-02 20:58:31,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:31,522 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 1468 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:31,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1583 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 20:58:31,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12970 states. [2022-11-02 20:58:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12970 to 12758. [2022-11-02 20:58:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12758 states, 10660 states have (on average 1.6460600375234522) internal successors, (17547), 10666 states have internal predecessors, (17547), 2071 states have call successors, (2071), 22 states have call predecessors, (2071), 26 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2022-11-02 20:58:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12758 states to 12758 states and 21884 transitions. [2022-11-02 20:58:32,877 INFO L78 Accepts]: Start accepts. Automaton has 12758 states and 21884 transitions. Word has length 132 [2022-11-02 20:58:32,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:32,878 INFO L495 AbstractCegarLoop]: Abstraction has 12758 states and 21884 transitions. [2022-11-02 20:58:32,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 12758 states and 21884 transitions. [2022-11-02 20:58:32,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-02 20:58:32,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:32,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:32,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:58:32,914 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:32,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:32,914 INFO L85 PathProgramCache]: Analyzing trace with hash -886491372, now seen corresponding path program 1 times [2022-11-02 20:58:32,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:32,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140206652] [2022-11-02 20:58:32,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:32,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-02 20:58:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:58:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:58:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:58:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-02 20:58:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:58:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 20:58:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:33,114 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:33,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:33,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140206652] [2022-11-02 20:58:33,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140206652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:33,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:33,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:33,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831452433] [2022-11-02 20:58:33,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:33,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:33,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:33,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:33,119 INFO L87 Difference]: Start difference. First operand 12758 states and 21884 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:37,503 INFO L93 Difference]: Finished difference Result 30818 states and 53393 transitions. [2022-11-02 20:58:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:37,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2022-11-02 20:58:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:37,597 INFO L225 Difference]: With dead ends: 30818 [2022-11-02 20:58:37,597 INFO L226 Difference]: Without dead ends: 20283 [2022-11-02 20:58:37,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:37,632 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 1469 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:37,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1563 Invalid, 1952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:58:37,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20283 states. [2022-11-02 20:58:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20283 to 20071. [2022-11-02 20:58:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20071 states, 16770 states have (on average 1.621526535480024) internal successors, (27193), 16776 states have internal predecessors, (27193), 3274 states have call successors, (3274), 22 states have call predecessors, (3274), 26 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2022-11-02 20:58:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20071 states to 20071 states and 34080 transitions. [2022-11-02 20:58:39,838 INFO L78 Accepts]: Start accepts. Automaton has 20071 states and 34080 transitions. Word has length 133 [2022-11-02 20:58:39,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:39,839 INFO L495 AbstractCegarLoop]: Abstraction has 20071 states and 34080 transitions. [2022-11-02 20:58:39,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 20071 states and 34080 transitions. [2022-11-02 20:58:39,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-02 20:58:39,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:39,874 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:39,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:58:39,874 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:39,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash 313182813, now seen corresponding path program 1 times [2022-11-02 20:58:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:39,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717116749] [2022-11-02 20:58:39,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:39,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 20:58:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-02 20:58:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 20:58:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-02 20:58:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-02 20:58:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-02 20:58:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-02 20:58:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:40,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:40,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717116749] [2022-11-02 20:58:40,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717116749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:40,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:40,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:40,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135980768] [2022-11-02 20:58:40,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:40,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:40,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:40,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:40,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:40,004 INFO L87 Difference]: Start difference. First operand 20071 states and 34080 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:46,364 INFO L93 Difference]: Finished difference Result 53260 states and 91927 transitions. [2022-11-02 20:58:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:46,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2022-11-02 20:58:46,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:46,529 INFO L225 Difference]: With dead ends: 53260 [2022-11-02 20:58:46,529 INFO L226 Difference]: Without dead ends: 36089 [2022-11-02 20:58:46,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:46,571 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 1465 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:46,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1585 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:58:46,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36089 states. [2022-11-02 20:58:50,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36089 to 35877. [2022-11-02 20:58:50,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35877 states, 30126 states have (on average 1.618369514704906) internal successors, (48755), 30132 states have internal predecessors, (48755), 5724 states have call successors, (5724), 22 states have call predecessors, (5724), 26 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2022-11-02 20:58:50,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35877 states to 35877 states and 60816 transitions. [2022-11-02 20:58:50,423 INFO L78 Accepts]: Start accepts. Automaton has 35877 states and 60816 transitions. Word has length 134 [2022-11-02 20:58:50,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:50,424 INFO L495 AbstractCegarLoop]: Abstraction has 35877 states and 60816 transitions. [2022-11-02 20:58:50,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:50,424 INFO L276 IsEmpty]: Start isEmpty. Operand 35877 states and 60816 transitions. [2022-11-02 20:58:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-02 20:58:50,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:50,471 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:50,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:58:50,471 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:50,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1635141582, now seen corresponding path program 1 times [2022-11-02 20:58:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:58:50,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052480360] [2022-11-02 20:58:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:58:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:58:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:58:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:58:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:58:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:58:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:58:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-02 20:58:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:58:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-02 20:58:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:58:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:58:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-02 20:58:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 20:58:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:58:50,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:58:50,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052480360] [2022-11-02 20:58:50,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052480360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:50,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:50,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:50,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397330032] [2022-11-02 20:58:50,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:50,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:50,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:58:50,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:50,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:50,652 INFO L87 Difference]: Start difference. First operand 35877 states and 60816 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:58:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:59,419 INFO L93 Difference]: Finished difference Result 98107 states and 168486 transitions. [2022-11-02 20:58:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:59,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2022-11-02 20:58:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:59,645 INFO L225 Difference]: With dead ends: 98107 [2022-11-02 20:58:59,646 INFO L226 Difference]: Without dead ends: 66086 [2022-11-02 20:58:59,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:59,723 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 1460 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:59,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1590 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 20:58:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66086 states. [2022-11-02 20:59:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66086 to 65874. [2022-11-02 20:59:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65874 states, 55610 states have (on average 1.614242042798058) internal successors, (89768), 55616 states have internal predecessors, (89768), 10237 states have call successors, (10237), 22 states have call predecessors, (10237), 26 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2022-11-02 20:59:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65874 states to 65874 states and 111387 transitions. [2022-11-02 20:59:07,352 INFO L78 Accepts]: Start accepts. Automaton has 65874 states and 111387 transitions. Word has length 135 [2022-11-02 20:59:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:59:07,353 INFO L495 AbstractCegarLoop]: Abstraction has 65874 states and 111387 transitions. [2022-11-02 20:59:07,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:59:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 65874 states and 111387 transitions. [2022-11-02 20:59:07,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-02 20:59:07,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:59:07,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:07,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:59:07,395 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:59:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:07,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2142740189, now seen corresponding path program 1 times [2022-11-02 20:59:07,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:07,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013237960] [2022-11-02 20:59:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:07,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:59:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-02 20:59:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:59:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:59:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:59:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-02 20:59:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 20:59:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-02 20:59:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-02 20:59:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-02 20:59:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-02 20:59:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-02 20:59:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-02 20:59:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:07,518 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:59:07,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:07,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013237960] [2022-11-02 20:59:07,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013237960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:07,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:07,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:59:07,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624554475] [2022-11-02 20:59:07,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:07,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:59:07,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:07,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:59:07,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:59:07,521 INFO L87 Difference]: Start difference. First operand 65874 states and 111387 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)