./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS --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 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35 --- 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-4e7fbc6 [2022-11-23 03:40:30,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:40:30,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:40:30,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:40:30,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:40:30,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:40:30,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:40:30,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:40:30,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:40:30,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:40:30,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:40:30,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:40:30,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:40:30,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:40:30,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:40:30,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:40:30,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:40:30,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:40:30,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:40:30,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:40:30,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:40:30,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:40:30,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:40:30,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:40:30,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:40:30,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:40:30,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:40:30,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:40:30,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:40:30,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:40:30,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:40:30,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:40:30,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:40:30,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:40:30,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:40:30,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:40:30,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:40:30,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:40:30,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:40:30,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:40:30,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:40:30,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:40:30,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:40:30,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:40:30,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:40:30,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:40:30,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:40:30,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:40:30,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:40:30,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:40:30,602 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:40:30,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:40:30,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:40:30,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:40:30,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:40:30,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:40:30,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:40:30,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:40:30,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:40:30,604 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:40:30,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:40:30,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:40:30,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:40:30,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:40:30,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:40:30,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:40:30,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:40:30,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:40:30,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:40:30,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:40:30,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:40:30,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:40:30,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:40:30,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:40:30,608 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:40:30,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:40:30,608 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f09e5adfeee9c308429dc6a96730836c8dd32d7c1bd2833eb57924261e76e35 [2022-11-23 03:40:30,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:40:30,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:40:30,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:40:30,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:40:30,914 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:40:30,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/product-lines/email_spec27_product33.cil.c [2022-11-23 03:40:34,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:40:34,367 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:40:34,367 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c [2022-11-23 03:40:34,387 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/data/8fc655a20/8b762e608ba74fbfacf1b1c23e651907/FLAGc344cd97f [2022-11-23 03:40:34,401 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/data/8fc655a20/8b762e608ba74fbfacf1b1c23e651907 [2022-11-23 03:40:34,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:40:34,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:40:34,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:40:34,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:40:34,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:40:34,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:34" (1/1) ... [2022-11-23 03:40:34,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd099f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:34, skipping insertion in model container [2022-11-23 03:40:34,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:34" (1/1) ... [2022-11-23 03:40:34,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:40:34,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:40:34,694 WARN L237 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_a038c5b1-9994-478f-86a4-a139c21b9af6/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556] [2022-11-23 03:40:35,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:40:35,267 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:40:35,289 WARN L237 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_a038c5b1-9994-478f-86a4-a139c21b9af6/sv-benchmarks/c/product-lines/email_spec27_product33.cil.c[1543,1556] [2022-11-23 03:40:35,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:40:35,470 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:40:35,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35 WrapperNode [2022-11-23 03:40:35,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:40:35,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:40:35,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:40:35,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:40:35,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,597 INFO L138 Inliner]: procedures = 134, calls = 229, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1062 [2022-11-23 03:40:35,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:40:35,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:40:35,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:40:35,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:40:35,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:40:35,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:40:35,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:40:35,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:40:35,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (1/1) ... [2022-11-23 03:40:35,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:40:35,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:35,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:40:35,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:40:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-23 03:40:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-23 03:40:35,810 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-23 03:40:35,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-23 03:40:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-23 03:40:35,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-23 03:40:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 03:40:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 03:40:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 03:40:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 03:40:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 03:40:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 03:40:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 03:40:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 03:40:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-23 03:40:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-23 03:40:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 03:40:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 03:40:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 03:40:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 03:40:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 03:40:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 03:40:35,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 03:40:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-23 03:40:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-23 03:40:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 03:40:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 03:40:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:40:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 03:40:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 03:40:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-23 03:40:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-23 03:40:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 03:40:35,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 03:40:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 03:40:35,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 03:40:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 03:40:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 03:40:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-23 03:40:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-23 03:40:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 03:40:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 03:40:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 03:40:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 03:40:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-23 03:40:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-23 03:40:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 03:40:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 03:40:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 03:40:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 03:40:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:40:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 03:40:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 03:40:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:40:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:40:36,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:40:36,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:40:37,145 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:40:37,165 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:40:37,166 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:40:37,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:37 BoogieIcfgContainer [2022-11-23 03:40:37,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:40:37,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:40:37,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:40:37,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:40:37,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:40:34" (1/3) ... [2022-11-23 03:40:37,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4fc84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:37, skipping insertion in model container [2022-11-23 03:40:37,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:35" (2/3) ... [2022-11-23 03:40:37,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4fc84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:37, skipping insertion in model container [2022-11-23 03:40:37,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:37" (3/3) ... [2022-11-23 03:40:37,177 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product33.cil.c [2022-11-23 03:40:37,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:40:37,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:40:37,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:40:37,300 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;@6a427168, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:40:37,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 03:40:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 394 states, 302 states have (on average 1.4966887417218544) internal successors, (452), 306 states have internal predecessors, (452), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-11-23 03:40:37,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-23 03:40:37,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:37,346 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:37,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:37,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash -86857885, now seen corresponding path program 1 times [2022-11-23 03:40:37,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:37,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951122898] [2022-11-23 03:40:37,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:37,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-23 03:40:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-23 03:40:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-23 03:40:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-23 03:40:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-23 03:40:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-23 03:40:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-23 03:40:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-23 03:40:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-23 03:40:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-23 03:40:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 03:40:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-23 03:40:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:40:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-23 03:40:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-23 03:40:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-23 03:40:38,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:38,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951122898] [2022-11-23 03:40:38,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951122898] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:38,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209996068] [2022-11-23 03:40:38,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:38,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:38,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:38,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:38,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:40:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:38,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 03:40:38,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-23 03:40:38,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:40:38,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209996068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:38,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:40:38,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-23 03:40:38,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096175249] [2022-11-23 03:40:38,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:38,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:40:38,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:40:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:40:38,905 INFO L87 Difference]: Start difference. First operand has 394 states, 302 states have (on average 1.4966887417218544) internal successors, (452), 306 states have internal predecessors, (452), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:40:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:38,976 INFO L93 Difference]: Finished difference Result 629 states and 910 transitions. [2022-11-23 03:40:38,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:40:38,978 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2022-11-23 03:40:38,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:38,993 INFO L225 Difference]: With dead ends: 629 [2022-11-23 03:40:38,993 INFO L226 Difference]: Without dead ends: 387 [2022-11-23 03:40:39,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:40:39,010 INFO L413 NwaCegarLoop]: 578 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, 578 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 [2022-11-23 03:40:39,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:40:39,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-23 03:40:39,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-11-23 03:40:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 296 states have (on average 1.489864864864865) internal successors, (441), 299 states have internal predecessors, (441), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-23 03:40:39,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 570 transitions. [2022-11-23 03:40:39,138 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 570 transitions. Word has length 142 [2022-11-23 03:40:39,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:39,140 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 570 transitions. [2022-11-23 03:40:39,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:40:39,140 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 570 transitions. [2022-11-23 03:40:39,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-23 03:40:39,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:39,156 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:39,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:39,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 03:40:39,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:39,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:39,369 INFO L85 PathProgramCache]: Analyzing trace with hash -243071728, now seen corresponding path program 1 times [2022-11-23 03:40:39,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:39,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157482578] [2022-11-23 03:40:39,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:39,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-23 03:40:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-23 03:40:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-23 03:40:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-23 03:40:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-23 03:40:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-23 03:40:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-23 03:40:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:40:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-23 03:40:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:40:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:40:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-23 03:40:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-23 03:40:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-23 03:40:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-23 03:40:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-23 03:40:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:39,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157482578] [2022-11-23 03:40:39,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157482578] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:39,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807059040] [2022-11-23 03:40:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:39,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:39,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:39,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:39,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:40:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:40:40,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-23 03:40:40,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:40:40,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807059040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:40,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:40:40,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-23 03:40:40,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191713518] [2022-11-23 03:40:40,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:40,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:40:40,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:40,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:40:40,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:40:40,125 INFO L87 Difference]: Start difference. First operand 387 states and 570 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:40:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:40,202 INFO L93 Difference]: Finished difference Result 619 states and 891 transitions. [2022-11-23 03:40:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:40:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2022-11-23 03:40:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:40,213 INFO L225 Difference]: With dead ends: 619 [2022-11-23 03:40:40,217 INFO L226 Difference]: Without dead ends: 390 [2022-11-23 03:40:40,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:40:40,219 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1134 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 [2022-11-23 03:40:40,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1134 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:40:40,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-23 03:40:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2022-11-23 03:40:40,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 298 states have (on average 1.4865771812080537) internal successors, (443), 301 states have internal predecessors, (443), 65 states have call successors, (65), 25 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-23 03:40:40,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 572 transitions. [2022-11-23 03:40:40,252 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 572 transitions. Word has length 143 [2022-11-23 03:40:40,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:40,254 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 572 transitions. [2022-11-23 03:40:40,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:40:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 572 transitions. [2022-11-23 03:40:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-23 03:40:40,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:40,258 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:40,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:40,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:40,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:40,466 INFO L85 PathProgramCache]: Analyzing trace with hash 502579672, now seen corresponding path program 1 times [2022-11-23 03:40:40,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:40,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888245774] [2022-11-23 03:40:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:40,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-23 03:40:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-23 03:40:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-23 03:40:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:40:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-23 03:40:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-23 03:40:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:40:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-23 03:40:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-23 03:40:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-23 03:40:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-23 03:40:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-23 03:40:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-23 03:40:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-23 03:40:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-23 03:40:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-23 03:40:40,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:40,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888245774] [2022-11-23 03:40:40,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888245774] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:40,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961946150] [2022-11-23 03:40:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:40,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:40,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:40,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:40:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:40:41,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-23 03:40:41,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:40:41,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961946150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:41,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:40:41,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-23 03:40:41,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075842806] [2022-11-23 03:40:41,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:41,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:40:41,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:41,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:40:41,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:40:41,220 INFO L87 Difference]: Start difference. First operand 389 states and 572 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:40:41,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:41,261 INFO L93 Difference]: Finished difference Result 813 states and 1211 transitions. [2022-11-23 03:40:41,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:40:41,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2022-11-23 03:40:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:41,265 INFO L225 Difference]: With dead ends: 813 [2022-11-23 03:40:41,266 INFO L226 Difference]: Without dead ends: 451 [2022-11-23 03:40:41,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:40:41,269 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 115 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1108 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 [2022-11-23 03:40:41,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1108 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:40:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-11-23 03:40:41,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 443. [2022-11-23 03:40:41,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 341 states have (on average 1.5043988269794721) internal successors, (513), 344 states have internal predecessors, (513), 76 states have call successors, (76), 25 states have call predecessors, (76), 25 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 03:40:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 664 transitions. [2022-11-23 03:40:41,298 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 664 transitions. Word has length 152 [2022-11-23 03:40:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:41,299 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 664 transitions. [2022-11-23 03:40:41,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:40:41,300 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 664 transitions. [2022-11-23 03:40:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-23 03:40:41,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:41,304 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:41,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:41,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 03:40:41,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:41,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:41,512 INFO L85 PathProgramCache]: Analyzing trace with hash 888341411, now seen corresponding path program 1 times [2022-11-23 03:40:41,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:41,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653286623] [2022-11-23 03:40:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:41,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-23 03:40:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-23 03:40:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-23 03:40:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-23 03:40:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-23 03:40:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:40:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:40:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-23 03:40:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-23 03:40:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:40:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:40:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-23 03:40:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-23 03:40:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-23 03:40:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-23 03:40:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-23 03:40:41,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:41,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653286623] [2022-11-23 03:40:41,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653286623] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:41,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376087153] [2022-11-23 03:40:41,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:41,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:41,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:41,852 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:41,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:40:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 03:40:42,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 03:40:42,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:40:42,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376087153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:42,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:40:42,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-23 03:40:42,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222980973] [2022-11-23 03:40:42,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:42,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:40:42,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:42,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:40:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:40:42,333 INFO L87 Difference]: Start difference. First operand 443 states and 664 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:42,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:42,423 INFO L93 Difference]: Finished difference Result 877 states and 1318 transitions. [2022-11-23 03:40:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:40:42,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2022-11-23 03:40:42,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:42,428 INFO L225 Difference]: With dead ends: 877 [2022-11-23 03:40:42,428 INFO L226 Difference]: Without dead ends: 445 [2022-11-23 03:40:42,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:42,433 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 133 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2091 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 [2022-11-23 03:40:42,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2091 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:40:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-23 03:40:42,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-23 03:40:42,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 342 states have (on average 1.5029239766081872) internal successors, (514), 346 states have internal predecessors, (514), 76 states have call successors, (76), 25 states have call predecessors, (76), 26 states have return successors, (77), 75 states have call predecessors, (77), 75 states have call successors, (77) [2022-11-23 03:40:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 667 transitions. [2022-11-23 03:40:42,475 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 667 transitions. Word has length 153 [2022-11-23 03:40:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:42,476 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 667 transitions. [2022-11-23 03:40:42,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 667 transitions. [2022-11-23 03:40:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-23 03:40:42,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:42,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:42,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:42,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:42,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:42,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash 801418398, now seen corresponding path program 1 times [2022-11-23 03:40:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:42,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620670351] [2022-11-23 03:40:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:42,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:40:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-23 03:40:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-23 03:40:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-23 03:40:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-23 03:40:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-23 03:40:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-23 03:40:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-23 03:40:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 03:40:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-23 03:40:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-23 03:40:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-23 03:40:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-23 03:40:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-23 03:40:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-23 03:40:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-23 03:40:43,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:43,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620670351] [2022-11-23 03:40:43,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620670351] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:43,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055848411] [2022-11-23 03:40:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:43,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:43,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:43,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:43,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:40:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:40:43,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 03:40:43,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:40:43,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055848411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:43,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:40:43,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-23 03:40:43,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739006355] [2022-11-23 03:40:43,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:43,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:40:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:43,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:40:43,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:40:43,489 INFO L87 Difference]: Start difference. First operand 445 states and 667 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:43,578 INFO L93 Difference]: Finished difference Result 879 states and 1323 transitions. [2022-11-23 03:40:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:40:43,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2022-11-23 03:40:43,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:43,584 INFO L225 Difference]: With dead ends: 879 [2022-11-23 03:40:43,584 INFO L226 Difference]: Without dead ends: 447 [2022-11-23 03:40:43,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:40:43,587 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 132 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2080 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 [2022-11-23 03:40:43,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 2080 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:40:43,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-23 03:40:43,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2022-11-23 03:40:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 343 states have (on average 1.501457725947522) internal successors, (515), 348 states have internal predecessors, (515), 76 states have call successors, (76), 25 states have call predecessors, (76), 27 states have return successors, (82), 75 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-23 03:40:43,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 673 transitions. [2022-11-23 03:40:43,618 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 673 transitions. Word has length 154 [2022-11-23 03:40:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:43,619 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 673 transitions. [2022-11-23 03:40:43,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:43,619 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 673 transitions. [2022-11-23 03:40:43,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-23 03:40:43,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:43,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:43,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:43,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:43,830 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:43,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:43,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1481161214, now seen corresponding path program 1 times [2022-11-23 03:40:43,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:43,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338679552] [2022-11-23 03:40:43,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:43,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:40:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:40:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:40:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-23 03:40:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:40:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-23 03:40:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-23 03:40:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:40:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:40:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-23 03:40:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-23 03:40:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:40:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-23 03:40:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-23 03:40:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-23 03:40:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-23 03:40:44,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:44,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338679552] [2022-11-23 03:40:44,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338679552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:44,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:44,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:44,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500461743] [2022-11-23 03:40:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:44,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:40:44,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:44,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:40:44,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:40:44,132 INFO L87 Difference]: Start difference. First operand 447 states and 673 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:47,160 INFO L93 Difference]: Finished difference Result 1084 states and 1641 transitions. [2022-11-23 03:40:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:40:47,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2022-11-23 03:40:47,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:47,167 INFO L225 Difference]: With dead ends: 1084 [2022-11-23 03:40:47,167 INFO L226 Difference]: Without dead ends: 660 [2022-11-23 03:40:47,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:40:47,170 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 1566 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 3514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:40:47,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 1044 Invalid, 3514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 2872 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-23 03:40:47,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-11-23 03:40:47,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 447. [2022-11-23 03:40:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 343 states have (on average 1.501457725947522) internal successors, (515), 348 states have internal predecessors, (515), 76 states have call successors, (76), 25 states have call predecessors, (76), 27 states have return successors, (81), 75 states have call predecessors, (81), 75 states have call successors, (81) [2022-11-23 03:40:47,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 672 transitions. [2022-11-23 03:40:47,241 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 672 transitions. Word has length 155 [2022-11-23 03:40:47,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:47,242 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 672 transitions. [2022-11-23 03:40:47,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:47,242 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 672 transitions. [2022-11-23 03:40:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-23 03:40:47,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:47,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:47,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:40:47,247 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:47,247 INFO L85 PathProgramCache]: Analyzing trace with hash -225060517, now seen corresponding path program 2 times [2022-11-23 03:40:47,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:47,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603385904] [2022-11-23 03:40:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:47,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:40:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:40:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:40:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-23 03:40:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:40:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-23 03:40:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:40:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:40:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:40:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-23 03:40:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-23 03:40:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:40:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-23 03:40:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 03:40:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-23 03:40:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-23 03:40:47,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:47,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603385904] [2022-11-23 03:40:47,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603385904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:47,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:47,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:47,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532857878] [2022-11-23 03:40:47,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:47,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:40:47,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:40:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:40:47,578 INFO L87 Difference]: Start difference. First operand 447 states and 672 transitions. Second operand has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:50,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:50,410 INFO L93 Difference]: Finished difference Result 1086 states and 1644 transitions. [2022-11-23 03:40:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:40:50,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2022-11-23 03:40:50,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:50,415 INFO L225 Difference]: With dead ends: 1086 [2022-11-23 03:40:50,415 INFO L226 Difference]: Without dead ends: 662 [2022-11-23 03:40:50,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:40:50,419 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 1538 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 2887 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 2887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:40:50,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 1044 Invalid, 3553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 2887 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-23 03:40:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-11-23 03:40:50,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 449. [2022-11-23 03:40:50,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 344 states have (on average 1.5) internal successors, (516), 350 states have internal predecessors, (516), 76 states have call successors, (76), 25 states have call predecessors, (76), 28 states have return successors, (83), 75 states have call predecessors, (83), 75 states have call successors, (83) [2022-11-23 03:40:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 675 transitions. [2022-11-23 03:40:50,481 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 675 transitions. Word has length 156 [2022-11-23 03:40:50,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:50,482 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 675 transitions. [2022-11-23 03:40:50,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 03:40:50,482 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 675 transitions. [2022-11-23 03:40:50,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-23 03:40:50,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:50,486 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:50,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:40:50,487 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:50,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:50,487 INFO L85 PathProgramCache]: Analyzing trace with hash -868010457, now seen corresponding path program 1 times [2022-11-23 03:40:50,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:50,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207596126] [2022-11-23 03:40:50,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:50,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:40:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:40:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:40:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-23 03:40:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-23 03:40:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:40:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-23 03:40:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:40:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-23 03:40:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-23 03:40:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-23 03:40:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-23 03:40:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-23 03:40:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-23 03:40:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-23 03:40:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-23 03:40:50,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:50,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207596126] [2022-11-23 03:40:50,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207596126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:50,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:50,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:40:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192907750] [2022-11-23 03:40:50,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:50,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:40:50,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:50,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:40:50,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:40:50,811 INFO L87 Difference]: Start difference. First operand 449 states and 675 transitions. Second operand has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-23 03:40:54,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:54,563 INFO L93 Difference]: Finished difference Result 1084 states and 1639 transitions. [2022-11-23 03:40:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:40:54,564 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2022-11-23 03:40:54,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:54,568 INFO L225 Difference]: With dead ends: 1084 [2022-11-23 03:40:54,568 INFO L226 Difference]: Without dead ends: 662 [2022-11-23 03:40:54,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:40:54,571 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1698 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 4652 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 5353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 4652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:40:54,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 1362 Invalid, 5353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [701 Valid, 4652 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 03:40:54,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-11-23 03:40:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 449. [2022-11-23 03:40:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 344 states have (on average 1.5) internal successors, (516), 350 states have internal predecessors, (516), 76 states have call successors, (76), 25 states have call predecessors, (76), 28 states have return successors, (82), 75 states have call predecessors, (82), 75 states have call successors, (82) [2022-11-23 03:40:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 674 transitions. [2022-11-23 03:40:54,622 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 674 transitions. Word has length 157 [2022-11-23 03:40:54,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:54,622 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 674 transitions. [2022-11-23 03:40:54,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 8 states have internal predecessors, (99), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-23 03:40:54,623 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 674 transitions. [2022-11-23 03:40:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-23 03:40:54,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:54,626 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:54,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:40:54,626 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:54,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1982289391, now seen corresponding path program 2 times [2022-11-23 03:40:54,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:54,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436461234] [2022-11-23 03:40:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:54,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:40:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:40:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:40:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-23 03:40:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-23 03:40:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-23 03:40:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-23 03:40:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:40:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-23 03:40:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-23 03:40:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-23 03:40:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:40:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-23 03:40:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-23 03:40:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-23 03:40:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-23 03:40:54,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:54,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436461234] [2022-11-23 03:40:54,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436461234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:54,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:54,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:40:54,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230398376] [2022-11-23 03:40:54,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:54,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:40:54,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:54,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:40:54,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:40:54,924 INFO L87 Difference]: Start difference. First operand 449 states and 674 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-23 03:40:58,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:58,781 INFO L93 Difference]: Finished difference Result 1086 states and 1645 transitions. [2022-11-23 03:40:58,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:40:58,782 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 158 [2022-11-23 03:40:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:58,786 INFO L225 Difference]: With dead ends: 1086 [2022-11-23 03:40:58,786 INFO L226 Difference]: Without dead ends: 664 [2022-11-23 03:40:58,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:40:58,789 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1736 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 4681 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 5379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 4681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:40:58,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 1362 Invalid, 5379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 4681 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 03:40:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-11-23 03:40:58,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 451. [2022-11-23 03:40:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 352 states have internal predecessors, (517), 76 states have call successors, (76), 25 states have call predecessors, (76), 29 states have return successors, (87), 75 states have call predecessors, (87), 75 states have call successors, (87) [2022-11-23 03:40:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 680 transitions. [2022-11-23 03:40:58,842 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 680 transitions. Word has length 158 [2022-11-23 03:40:58,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:58,842 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 680 transitions. [2022-11-23 03:40:58,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-23 03:40:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 680 transitions. [2022-11-23 03:40:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-23 03:40:58,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:58,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:58,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:40:58,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:58,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:58,847 INFO L85 PathProgramCache]: Analyzing trace with hash 509648940, now seen corresponding path program 1 times [2022-11-23 03:40:58,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:58,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806903582] [2022-11-23 03:40:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:58,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:40:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:40:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:40:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:40:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:40:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-23 03:40:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-23 03:40:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 03:40:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-23 03:40:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-23 03:40:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:40:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:40:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-23 03:40:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-23 03:40:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-23 03:40:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-23 03:40:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-23 03:40:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-23 03:40:59,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:59,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806903582] [2022-11-23 03:40:59,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806903582] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:59,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675484079] [2022-11-23 03:40:59,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:59,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:59,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:59,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:40:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:59,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:40:59,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:40:59,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:40:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:40:59,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675484079] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:40:59,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:40:59,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-11-23 03:40:59,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429182072] [2022-11-23 03:40:59,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:40:59,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:40:59,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:59,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:40:59,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:40:59,779 INFO L87 Difference]: Start difference. First operand 451 states and 680 transitions. Second operand has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-11-23 03:41:04,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:04,948 INFO L93 Difference]: Finished difference Result 1815 states and 2953 transitions. [2022-11-23 03:41:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 03:41:04,951 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) Word has length 159 [2022-11-23 03:41:04,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:04,960 INFO L225 Difference]: With dead ends: 1815 [2022-11-23 03:41:04,960 INFO L226 Difference]: Without dead ends: 1395 [2022-11-23 03:41:04,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:41:04,965 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 3848 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 5786 mSolverCounterSat, 1559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3850 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 7345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1559 IncrementalHoareTripleChecker+Valid, 5786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:04,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3850 Valid, 3463 Invalid, 7345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1559 Valid, 5786 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 03:41:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-11-23 03:41:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 804. [2022-11-23 03:41:05,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 634 states have (on average 1.5583596214511042) internal successors, (988), 641 states have internal predecessors, (988), 140 states have call successors, (140), 25 states have call predecessors, (140), 29 states have return successors, (161), 139 states have call predecessors, (161), 139 states have call successors, (161) [2022-11-23 03:41:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1289 transitions. [2022-11-23 03:41:05,077 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1289 transitions. Word has length 159 [2022-11-23 03:41:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:05,077 INFO L495 AbstractCegarLoop]: Abstraction has 804 states and 1289 transitions. [2022-11-23 03:41:05,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 11 states have internal predecessors, (164), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (36), 3 states have call predecessors, (36), 4 states have call successors, (36) [2022-11-23 03:41:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1289 transitions. [2022-11-23 03:41:05,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-23 03:41:05,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:05,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:05,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:41:05,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a038c5b1-9994-478f-86a4-a139c21b9af6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 03:41:05,290 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:05,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1149749462, now seen corresponding path program 1 times [2022-11-23 03:41:05,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:05,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539507740] [2022-11-23 03:41:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:05,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-23 03:41:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:41:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-23 03:41:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:41:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-23 03:41:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-23 03:41:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-23 03:41:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-23 03:41:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-23 03:41:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-23 03:41:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-23 03:41:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-23 03:41:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:05,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:05,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539507740] [2022-11-23 03:41:05,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539507740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:05,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:05,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:05,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235358799] [2022-11-23 03:41:05,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:05,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:05,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:05,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:05,491 INFO L87 Difference]: Start difference. First operand 804 states and 1289 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:07,735 INFO L93 Difference]: Finished difference Result 2076 states and 3396 transitions. [2022-11-23 03:41:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:07,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2022-11-23 03:41:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:07,744 INFO L225 Difference]: With dead ends: 2076 [2022-11-23 03:41:07,744 INFO L226 Difference]: Without dead ends: 1350 [2022-11-23 03:41:07,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:07,747 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 1458 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 2481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:07,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 922 Invalid, 2481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:07,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2022-11-23 03:41:07,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1129. [2022-11-23 03:41:07,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 895 states have (on average 1.5787709497206703) internal successors, (1413), 902 states have internal predecessors, (1413), 204 states have call successors, (204), 25 states have call predecessors, (204), 29 states have return successors, (235), 203 states have call predecessors, (235), 203 states have call successors, (235) [2022-11-23 03:41:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1852 transitions. [2022-11-23 03:41:07,896 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1852 transitions. Word has length 162 [2022-11-23 03:41:07,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:07,896 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1852 transitions. [2022-11-23 03:41:07,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:07,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1852 transitions. [2022-11-23 03:41:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-23 03:41:07,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:07,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:07,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 03:41:07,904 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:07,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1442917488, now seen corresponding path program 1 times [2022-11-23 03:41:07,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:07,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402549405] [2022-11-23 03:41:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:07,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:07,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:07,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:07,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-23 03:41:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-23 03:41:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-23 03:41:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:41:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-23 03:41:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-23 03:41:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-23 03:41:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:41:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-23 03:41:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 03:41:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-23 03:41:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-23 03:41:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:08,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:08,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402549405] [2022-11-23 03:41:08,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402549405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:08,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:08,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:08,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898534096] [2022-11-23 03:41:08,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:08,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:08,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:08,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:08,069 INFO L87 Difference]: Start difference. First operand 1129 states and 1852 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:10,448 INFO L93 Difference]: Finished difference Result 2881 states and 4780 transitions. [2022-11-23 03:41:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:10,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 163 [2022-11-23 03:41:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:10,462 INFO L225 Difference]: With dead ends: 2881 [2022-11-23 03:41:10,462 INFO L226 Difference]: Without dead ends: 1883 [2022-11-23 03:41:10,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:10,466 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1458 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:10,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 898 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-11-23 03:41:10,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1662. [2022-11-23 03:41:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1333 states have (on average 1.5896474118529633) internal successors, (2119), 1340 states have internal predecessors, (2119), 299 states have call successors, (299), 25 states have call predecessors, (299), 29 states have return successors, (330), 298 states have call predecessors, (330), 298 states have call successors, (330) [2022-11-23 03:41:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2748 transitions. [2022-11-23 03:41:10,708 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2748 transitions. Word has length 163 [2022-11-23 03:41:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:10,708 INFO L495 AbstractCegarLoop]: Abstraction has 1662 states and 2748 transitions. [2022-11-23 03:41:10,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2748 transitions. [2022-11-23 03:41:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-23 03:41:10,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:10,717 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:10,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 03:41:10,718 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:10,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:10,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1259894904, now seen corresponding path program 1 times [2022-11-23 03:41:10,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:10,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872189814] [2022-11-23 03:41:10,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:10,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-23 03:41:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-23 03:41:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:41:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:41:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-23 03:41:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-23 03:41:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-23 03:41:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:41:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-23 03:41:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-23 03:41:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-23 03:41:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-23 03:41:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:10,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:10,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872189814] [2022-11-23 03:41:10,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872189814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:10,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:10,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:10,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450115663] [2022-11-23 03:41:10,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:10,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:10,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:10,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:10,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:10,883 INFO L87 Difference]: Start difference. First operand 1662 states and 2748 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:13,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:13,390 INFO L93 Difference]: Finished difference Result 4088 states and 6866 transitions. [2022-11-23 03:41:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:13,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2022-11-23 03:41:13,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:13,403 INFO L225 Difference]: With dead ends: 4088 [2022-11-23 03:41:13,404 INFO L226 Difference]: Without dead ends: 2692 [2022-11-23 03:41:13,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:13,409 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1473 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:13,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 871 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [702 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 03:41:13,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2022-11-23 03:41:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 2471. [2022-11-23 03:41:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2019 states have (on average 1.5978207033184746) internal successors, (3226), 2026 states have internal predecessors, (3226), 422 states have call successors, (422), 25 states have call predecessors, (422), 29 states have return successors, (469), 421 states have call predecessors, (469), 421 states have call successors, (469) [2022-11-23 03:41:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 4117 transitions. [2022-11-23 03:41:13,732 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 4117 transitions. Word has length 164 [2022-11-23 03:41:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:13,733 INFO L495 AbstractCegarLoop]: Abstraction has 2471 states and 4117 transitions. [2022-11-23 03:41:13,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 4117 transitions. [2022-11-23 03:41:13,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-23 03:41:13,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:13,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:13,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 03:41:13,746 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:13,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:13,747 INFO L85 PathProgramCache]: Analyzing trace with hash 618137199, now seen corresponding path program 1 times [2022-11-23 03:41:13,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:13,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139177568] [2022-11-23 03:41:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:13,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-23 03:41:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-23 03:41:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-23 03:41:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-23 03:41:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 03:41:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:41:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-23 03:41:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-23 03:41:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-23 03:41:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-23 03:41:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-23 03:41:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-23 03:41:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:13,910 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:13,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:13,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139177568] [2022-11-23 03:41:13,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139177568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:13,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:13,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:13,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944968942] [2022-11-23 03:41:13,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:13,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:13,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:13,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:13,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:13,913 INFO L87 Difference]: Start difference. First operand 2471 states and 4117 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:16,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:16,443 INFO L93 Difference]: Finished difference Result 5972 states and 10126 transitions. [2022-11-23 03:41:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:16,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2022-11-23 03:41:16,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:16,464 INFO L225 Difference]: With dead ends: 5972 [2022-11-23 03:41:16,465 INFO L226 Difference]: Without dead ends: 3986 [2022-11-23 03:41:16,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:16,472 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1508 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:16,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 869 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:16,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2022-11-23 03:41:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3765. [2022-11-23 03:41:17,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 3134 states have (on average 1.603063178047224) internal successors, (5024), 3141 states have internal predecessors, (5024), 601 states have call successors, (601), 25 states have call predecessors, (601), 29 states have return successors, (674), 600 states have call predecessors, (674), 600 states have call successors, (674) [2022-11-23 03:41:17,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 6299 transitions. [2022-11-23 03:41:17,038 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 6299 transitions. Word has length 165 [2022-11-23 03:41:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:17,038 INFO L495 AbstractCegarLoop]: Abstraction has 3765 states and 6299 transitions. [2022-11-23 03:41:17,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 6299 transitions. [2022-11-23 03:41:17,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-23 03:41:17,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:17,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:17,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 03:41:17,059 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:17,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:17,060 INFO L85 PathProgramCache]: Analyzing trace with hash 682771916, now seen corresponding path program 1 times [2022-11-23 03:41:17,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:17,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797284203] [2022-11-23 03:41:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:17,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-23 03:41:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:41:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-23 03:41:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:41:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:41:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-23 03:41:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-23 03:41:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:41:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-23 03:41:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-23 03:41:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-23 03:41:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-23 03:41:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:17,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:17,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797284203] [2022-11-23 03:41:17,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797284203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:17,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:17,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:17,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386321558] [2022-11-23 03:41:17,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:17,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:17,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:17,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:17,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:17,210 INFO L87 Difference]: Start difference. First operand 3765 states and 6299 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:19,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:19,899 INFO L93 Difference]: Finished difference Result 9075 states and 15490 transitions. [2022-11-23 03:41:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:19,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 166 [2022-11-23 03:41:19,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:19,929 INFO L225 Difference]: With dead ends: 9075 [2022-11-23 03:41:19,929 INFO L226 Difference]: Without dead ends: 6127 [2022-11-23 03:41:19,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:19,940 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1489 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 709 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:19,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 903 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [709 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:19,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2022-11-23 03:41:20,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 5906. [2022-11-23 03:41:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 4899 states have (on average 1.5982853643600734) internal successors, (7830), 4906 states have internal predecessors, (7830), 977 states have call successors, (977), 25 states have call predecessors, (977), 29 states have return successors, (1094), 976 states have call predecessors, (1094), 976 states have call successors, (1094) [2022-11-23 03:41:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 9901 transitions. [2022-11-23 03:41:20,681 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 9901 transitions. Word has length 166 [2022-11-23 03:41:20,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:20,681 INFO L495 AbstractCegarLoop]: Abstraction has 5906 states and 9901 transitions. [2022-11-23 03:41:20,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:20,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 9901 transitions. [2022-11-23 03:41:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-23 03:41:20,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:20,710 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:20,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 03:41:20,710 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:20,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:20,711 INFO L85 PathProgramCache]: Analyzing trace with hash 949048363, now seen corresponding path program 1 times [2022-11-23 03:41:20,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:20,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501084723] [2022-11-23 03:41:20,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:20,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:41:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-23 03:41:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-23 03:41:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-23 03:41:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:41:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-23 03:41:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-23 03:41:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-23 03:41:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-23 03:41:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-23 03:41:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-23 03:41:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-23 03:41:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:20,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:20,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501084723] [2022-11-23 03:41:20,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501084723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:20,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:20,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:20,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226509025] [2022-11-23 03:41:20,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:20,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:20,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:20,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:20,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:20,843 INFO L87 Difference]: Start difference. First operand 5906 states and 9901 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:23,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:23,981 INFO L93 Difference]: Finished difference Result 14692 states and 25103 transitions. [2022-11-23 03:41:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:23,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 167 [2022-11-23 03:41:23,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:24,035 INFO L225 Difference]: With dead ends: 14692 [2022-11-23 03:41:24,035 INFO L226 Difference]: Without dead ends: 10005 [2022-11-23 03:41:24,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:24,051 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1537 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 709 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:24,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 882 Invalid, 2421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [709 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:24,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10005 states. [2022-11-23 03:41:25,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10005 to 9784. [2022-11-23 03:41:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9784 states, 8171 states have (on average 1.5969893525884225) internal successors, (13049), 8178 states have internal predecessors, (13049), 1583 states have call successors, (1583), 25 states have call predecessors, (1583), 29 states have return successors, (1778), 1582 states have call predecessors, (1778), 1582 states have call successors, (1778) [2022-11-23 03:41:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9784 states to 9784 states and 16410 transitions. [2022-11-23 03:41:25,361 INFO L78 Accepts]: Start accepts. Automaton has 9784 states and 16410 transitions. Word has length 167 [2022-11-23 03:41:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:25,362 INFO L495 AbstractCegarLoop]: Abstraction has 9784 states and 16410 transitions. [2022-11-23 03:41:25,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 9784 states and 16410 transitions. [2022-11-23 03:41:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-23 03:41:25,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:25,402 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:25,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 03:41:25,403 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:25,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:25,403 INFO L85 PathProgramCache]: Analyzing trace with hash -552933858, now seen corresponding path program 1 times [2022-11-23 03:41:25,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:25,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21428697] [2022-11-23 03:41:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:25,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-23 03:41:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 03:41:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-23 03:41:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-23 03:41:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-23 03:41:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-23 03:41:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-23 03:41:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-23 03:41:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-23 03:41:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-23 03:41:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-23 03:41:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-23 03:41:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:25,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21428697] [2022-11-23 03:41:25,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21428697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:25,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:25,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:25,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172188194] [2022-11-23 03:41:25,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:25,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:25,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:25,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:25,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:25,540 INFO L87 Difference]: Start difference. First operand 9784 states and 16410 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:29,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:29,373 INFO L93 Difference]: Finished difference Result 25401 states and 43384 transitions. [2022-11-23 03:41:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:29,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2022-11-23 03:41:29,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:29,445 INFO L225 Difference]: With dead ends: 25401 [2022-11-23 03:41:29,445 INFO L226 Difference]: Without dead ends: 17318 [2022-11-23 03:41:29,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:29,471 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1455 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:29,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 930 Invalid, 2476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:29,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17318 states. [2022-11-23 03:41:31,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17318 to 17097. [2022-11-23 03:41:31,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17097 states, 14281 states have (on average 1.589174427561095) internal successors, (22695), 14288 states have internal predecessors, (22695), 2786 states have call successors, (2786), 25 states have call predecessors, (2786), 29 states have return successors, (3125), 2785 states have call predecessors, (3125), 2785 states have call successors, (3125) [2022-11-23 03:41:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17097 states to 17097 states and 28606 transitions. [2022-11-23 03:41:31,322 INFO L78 Accepts]: Start accepts. Automaton has 17097 states and 28606 transitions. Word has length 168 [2022-11-23 03:41:31,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:31,322 INFO L495 AbstractCegarLoop]: Abstraction has 17097 states and 28606 transitions. [2022-11-23 03:41:31,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 17097 states and 28606 transitions. [2022-11-23 03:41:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-23 03:41:31,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:31,375 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:31,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 03:41:31,376 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:31,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:31,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1307074826, now seen corresponding path program 1 times [2022-11-23 03:41:31,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:31,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411266926] [2022-11-23 03:41:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:31,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-23 03:41:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:41:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:41:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-23 03:41:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-23 03:41:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-23 03:41:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:41:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-23 03:41:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-23 03:41:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-23 03:41:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-23 03:41:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-23 03:41:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:31,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:31,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411266926] [2022-11-23 03:41:31,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411266926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:31,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:31,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:31,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679979818] [2022-11-23 03:41:31,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:31,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:31,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:31,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:31,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:31,512 INFO L87 Difference]: Start difference. First operand 17097 states and 28606 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:36,973 INFO L93 Difference]: Finished difference Result 45377 states and 77397 transitions. [2022-11-23 03:41:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:36,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 169 [2022-11-23 03:41:36,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:37,103 INFO L225 Difference]: With dead ends: 45377 [2022-11-23 03:41:37,103 INFO L226 Difference]: Without dead ends: 30658 [2022-11-23 03:41:37,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:37,142 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1453 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 694 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:37,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 872 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [694 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30658 states. [2022-11-23 03:41:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30658 to 30437. [2022-11-23 03:41:40,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30437 states, 25582 states have (on average 1.5854116175435853) internal successors, (40558), 25589 states have internal predecessors, (40558), 4825 states have call successors, (4825), 25 states have call predecessors, (4825), 29 states have return successors, (5438), 4824 states have call predecessors, (5438), 4824 states have call successors, (5438) [2022-11-23 03:41:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30437 states to 30437 states and 50821 transitions. [2022-11-23 03:41:41,071 INFO L78 Accepts]: Start accepts. Automaton has 30437 states and 50821 transitions. Word has length 169 [2022-11-23 03:41:41,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:41,071 INFO L495 AbstractCegarLoop]: Abstraction has 30437 states and 50821 transitions. [2022-11-23 03:41:41,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 30437 states and 50821 transitions. [2022-11-23 03:41:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-23 03:41:41,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:41,147 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:41,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 03:41:41,148 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1163844476, now seen corresponding path program 1 times [2022-11-23 03:41:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:41,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619735901] [2022-11-23 03:41:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:41,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-23 03:41:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:41:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:41:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-23 03:41:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:41:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-23 03:41:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:41:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-23 03:41:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-23 03:41:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-23 03:41:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-23 03:41:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-23 03:41:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:41,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:41,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619735901] [2022-11-23 03:41:41,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619735901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:41,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:41,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:41,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071096001] [2022-11-23 03:41:41,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:41,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:41,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:41,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:41,408 INFO L87 Difference]: Start difference. First operand 30437 states and 50821 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:49,043 INFO L93 Difference]: Finished difference Result 83114 states and 140921 transitions. [2022-11-23 03:41:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:41:49,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2022-11-23 03:41:49,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:49,325 INFO L225 Difference]: With dead ends: 83114 [2022-11-23 03:41:49,325 INFO L226 Difference]: Without dead ends: 55867 [2022-11-23 03:41:49,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:49,395 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 1458 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:49,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 909 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:41:49,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55867 states. [2022-11-23 03:41:55,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55867 to 55646. [2022-11-23 03:41:55,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55646 states, 47076 states have (on average 1.5801894808394936) internal successors, (74389), 47083 states have internal predecessors, (74389), 8540 states have call successors, (8540), 25 states have call predecessors, (8540), 29 states have return successors, (9685), 8539 states have call predecessors, (9685), 8539 states have call successors, (9685) [2022-11-23 03:41:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55646 states to 55646 states and 92614 transitions. [2022-11-23 03:41:55,901 INFO L78 Accepts]: Start accepts. Automaton has 55646 states and 92614 transitions. Word has length 170 [2022-11-23 03:41:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:55,901 INFO L495 AbstractCegarLoop]: Abstraction has 55646 states and 92614 transitions. [2022-11-23 03:41:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 03:41:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 55646 states and 92614 transitions. [2022-11-23 03:41:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-23 03:41:56,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:56,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:56,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 03:41:56,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:56,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1443753194, now seen corresponding path program 1 times [2022-11-23 03:41:56,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:56,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098641722] [2022-11-23 03:41:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:56,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 03:41:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-23 03:41:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-23 03:41:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:41:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:41:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:41:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-23 03:41:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:41:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 03:41:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-23 03:41:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-23 03:41:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-23 03:41:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-23 03:41:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-23 03:41:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-23 03:41:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-23 03:41:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-23 03:41:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-23 03:41:56,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:56,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098641722] [2022-11-23 03:41:56,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098641722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:56,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:56,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:41:56,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313609036] [2022-11-23 03:41:56,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:56,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:41:56,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:56,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:41:56,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:41:56,163 INFO L87 Difference]: Start difference. First operand 55646 states and 92614 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)