./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/01b_inc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/01b_inc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:03:46,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:03:46,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:03:46,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:03:46,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:03:46,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:03:46,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:03:46,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:03:46,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:03:46,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:03:46,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:03:46,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:03:46,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:03:46,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:03:46,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:03:46,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:03:46,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:03:46,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:03:46,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:03:46,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:03:46,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:03:46,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:03:46,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:03:46,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:03:46,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:03:46,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:03:46,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:03:46,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:03:46,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:03:46,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:03:46,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:03:46,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:03:46,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:03:46,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:03:46,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:03:46,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:03:46,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:03:46,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:03:46,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:03:46,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:03:46,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:03:46,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-22 23:03:46,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:03:46,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:03:46,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:03:46,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:03:46,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:03:46,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-22 23:03:46,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:03:46,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:03:46,506 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:03:46,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:03:46,507 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:03:46,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:03:46,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:03:46,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:03:46,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:03:46,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:03:46,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:03:46,509 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:03:46,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:03:46,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:03:46,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:03:46,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:03:46,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:03:46,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-22 23:03:46,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:03:46,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:03:46,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:03:46,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:03:46,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:03:46,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:03:46,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:03:46,512 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:03:46,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-22 23:03:46,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:03:46,513 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-22 23:03:46,513 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-22 23:03:46,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9 [2021-11-22 23:03:46,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:03:46,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:03:46,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:03:46,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:03:46,894 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:03:46,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/../../sv-benchmarks/c/pthread-ext/01b_inc.i [2021-11-22 23:03:46,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/data/8cb2498a5/7e6c7e672bb94f708d1735eb3f62a5e4/FLAGbf6f2e5c8 [2021-11-22 23:03:47,594 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:03:47,596 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/sv-benchmarks/c/pthread-ext/01b_inc.i [2021-11-22 23:03:47,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/data/8cb2498a5/7e6c7e672bb94f708d1735eb3f62a5e4/FLAGbf6f2e5c8 [2021-11-22 23:03:47,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/data/8cb2498a5/7e6c7e672bb94f708d1735eb3f62a5e4 [2021-11-22 23:03:47,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:03:47,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:03:47,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:03:47,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:03:47,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:03:47,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:03:47" (1/1) ... [2021-11-22 23:03:47,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279fee33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:47, skipping insertion in model container [2021-11-22 23:03:47,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:03:47" (1/1) ... [2021-11-22 23:03:47,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:03:47,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:03:48,202 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-22 23:03:48,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/sv-benchmarks/c/pthread-ext/01b_inc.i[31005,31018] [2021-11-22 23:03:48,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:03:48,378 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:03:48,403 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-22 23:03:48,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/sv-benchmarks/c/pthread-ext/01b_inc.i[31005,31018] [2021-11-22 23:03:48,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:03:48,486 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:03:48,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48 WrapperNode [2021-11-22 23:03:48,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:03:48,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:03:48,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:03:48,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:03:48,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,531 INFO L137 Inliner]: procedures = 173, calls = 20, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 62 [2021-11-22 23:03:48,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:03:48,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:03:48,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:03:48,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:03:48,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:03:48,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:03:48,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:03:48,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:03:48,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (1/1) ... [2021-11-22 23:03:48,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:03:48,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:48,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 23:03:48,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 23:03:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-22 23:03:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-22 23:03:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:03:48,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:03:48,648 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 23:03:48,742 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:03:48,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:03:48,867 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:03:48,913 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:03:48,914 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:03:48,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:03:48 BoogieIcfgContainer [2021-11-22 23:03:48,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:03:48,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:03:48,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:03:48,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:03:48,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:03:47" (1/3) ... [2021-11-22 23:03:48,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44351607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:03:48, skipping insertion in model container [2021-11-22 23:03:48,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:03:48" (2/3) ... [2021-11-22 23:03:48,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44351607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:03:48, skipping insertion in model container [2021-11-22 23:03:48,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:03:48" (3/3) ... [2021-11-22 23:03:48,925 INFO L111 eAbstractionObserver]: Analyzing ICFG 01b_inc.i [2021-11-22 23:03:48,930 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 23:03:48,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:03:48,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 23:03:48,931 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 23:03:48,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,997 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,998 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,998 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,998 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:48,999 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 23:03:49,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:03:49,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:49,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:03:49,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-22 23:03:49,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-11-22 23:03:49,117 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:03:49,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:03:49,198 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:03:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1538553645, now seen corresponding path program 1 times [2021-11-22 23:03:49,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:49,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080317125] [2021-11-22 23:03:49,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:49,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:03:49,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:49,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080317125] [2021-11-22 23:03:49,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080317125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:03:49,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:03:49,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 23:03:49,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423437377] [2021-11-22 23:03:49,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:03:49,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:03:49,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:03:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:03:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:49,660 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:49,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:49,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:49,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:03:49,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 23:03:49,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:03:49,737 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-22 23:03:49,738 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2021-11-22 23:03:49,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:03:49,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:49,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:03:49,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-11-22 23:03:49,758 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-22 23:03:49,759 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:03:49,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:03:49,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:03:49,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:49,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1465134151, now seen corresponding path program 1 times [2021-11-22 23:03:49,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:49,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692717153] [2021-11-22 23:03:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:49,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:03:49,843 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:03:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:03:49,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 23:03:49,877 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 23:03:49,877 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-22 23:03:49,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:03:49,881 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-22 23:03:49,881 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2021-11-22 23:03:49,881 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-22 23:03:49,882 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-22 23:03:49,899 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,899 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,899 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,899 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,901 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,901 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,901 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,901 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,901 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,902 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,902 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,902 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,902 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,902 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,903 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,903 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,903 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,903 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,903 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,903 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,904 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,904 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,905 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,905 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,905 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,905 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,905 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,906 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,906 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,906 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,906 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,906 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,907 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,907 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,907 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,907 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,914 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,915 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,919 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,919 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,919 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,920 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,920 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,920 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,920 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,921 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,921 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,921 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,921 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,922 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,922 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,922 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:49,923 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 23:03:49,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:03:49,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:49,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:03:49,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-11-22 23:03:49,969 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-22 23:03:49,970 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:03:49,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:03:50,060 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:03:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:50,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1144847341, now seen corresponding path program 1 times [2021-11-22 23:03:50,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:50,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787222775] [2021-11-22 23:03:50,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:50,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:03:50,081 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:03:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:03:50,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 23:03:50,103 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 23:03:50,103 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-22 23:03:50,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 23:03:50,106 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-22 23:03:50,107 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2021-11-22 23:03:50,107 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-22 23:03:50,107 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-22 23:03:50,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,116 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,117 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,118 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,119 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,120 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,122 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,123 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,123 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,123 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,123 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,123 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,137 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,147 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:03:50,148 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 23:03:50,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:03:50,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:50,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:03:50,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2021-11-22 23:03:50,249 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2021-11-22 23:03:50,250 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:03:50,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:03:50,402 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:03:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:50,403 INFO L85 PathProgramCache]: Analyzing trace with hash -29363934, now seen corresponding path program 1 times [2021-11-22 23:03:50,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:50,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518488465] [2021-11-22 23:03:50,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:50,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:03:50,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:50,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518488465] [2021-11-22 23:03:50,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518488465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:03:50,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:03:50,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:03:50,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921767787] [2021-11-22 23:03:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:03:50,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:03:50,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:50,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:03:50,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:03:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:50,557 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:50,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:51,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 23:03:51,371 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:03:51,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:51,372 INFO L85 PathProgramCache]: Analyzing trace with hash -124596886, now seen corresponding path program 1 times [2021-11-22 23:03:51,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:51,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760716220] [2021-11-22 23:03:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:51,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:03:51,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:51,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760716220] [2021-11-22 23:03:51,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760716220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:03:51,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:03:51,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:03:51,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498479199] [2021-11-22 23:03:51,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:03:51,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:03:51,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:51,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:03:51,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:03:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:51,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:51,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:51,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:51,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 23:03:51,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:03:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:51,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2070317223, now seen corresponding path program 1 times [2021-11-22 23:03:51,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:51,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307005409] [2021-11-22 23:03:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:51,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:03:51,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:51,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307005409] [2021-11-22 23:03:51,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307005409] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:03:51,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722868343] [2021-11-22 23:03:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:51,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:03:51,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:51,980 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:03:52,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 23:03:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:52,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:03:52,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:03:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:03:52,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:03:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:03:52,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722868343] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:03:52,840 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:03:52,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2021-11-22 23:03:52,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705934400] [2021-11-22 23:03:52,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:03:52,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 23:03:52,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 23:03:52,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-11-22 23:03:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:52,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:52,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:52,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:52,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:52,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:03:53,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 23:03:53,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-22 23:03:53,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:03:53,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:53,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1155777354, now seen corresponding path program 1 times [2021-11-22 23:03:53,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:53,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971120664] [2021-11-22 23:03:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:53,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:03:53,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:53,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971120664] [2021-11-22 23:03:53,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971120664] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:03:53,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216912047] [2021-11-22 23:03:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:53,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:03:53,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:53,578 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:03:53,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 23:03:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:53,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:03:53,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:03:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:03:53,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:03:54,082 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:03:54,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216912047] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:03:54,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:03:54,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 8] total 14 [2021-11-22 23:03:54,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520292614] [2021-11-22 23:03:54,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:03:54,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:03:54,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:54,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:03:54,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-22 23:03:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:54,085 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:54,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:54,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:03:54,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:03:54,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:54,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-22 23:03:54,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:03:54,692 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:03:54,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:54,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1639954354, now seen corresponding path program 1 times [2021-11-22 23:03:54,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:54,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591297953] [2021-11-22 23:03:54,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:54,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:03:54,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:54,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591297953] [2021-11-22 23:03:54,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591297953] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:03:54,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732367639] [2021-11-22 23:03:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:54,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:03:54,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:54,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:03:54,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 23:03:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:54,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:03:54,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:03:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:03:55,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:03:55,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732367639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:03:55,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:03:55,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2021-11-22 23:03:55,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713069360] [2021-11-22 23:03:55,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:03:55,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:03:55,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:55,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:03:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:03:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:55,050 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:55,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:55,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:55,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:55,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:03:55,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:55,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:03:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:03:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:55,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 23:03:55,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:03:55,645 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:03:55,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:03:55,646 INFO L85 PathProgramCache]: Analyzing trace with hash 121900494, now seen corresponding path program 2 times [2021-11-22 23:03:55,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:03:55,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211699908] [2021-11-22 23:03:55,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:03:55,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:03:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:03:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:03:55,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:03:55,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211699908] [2021-11-22 23:03:55,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211699908] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:03:55,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715986854] [2021-11-22 23:03:55,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:03:55,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:03:55,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:03:55,895 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:03:55,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 23:03:55,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:03:55,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:03:55,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:03:55,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:03:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:03:56,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:03:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:03:56,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715986854] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:03:56,725 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:03:56,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2021-11-22 23:03:56,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506376432] [2021-11-22 23:03:56,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:03:56,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:03:56,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:03:56,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:03:56,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:03:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:03:56,727 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:03:56,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.545454545454546) internal successors, (122), 23 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:03:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:03:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:03:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:03:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:03:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-22 23:04:00,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:00,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-22 23:04:00,234 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:00,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:00,235 INFO L85 PathProgramCache]: Analyzing trace with hash -478799542, now seen corresponding path program 1 times [2021-11-22 23:04:00,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:00,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187207312] [2021-11-22 23:04:00,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:00,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:04:00,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:00,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187207312] [2021-11-22 23:04:00,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187207312] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:00,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754212411] [2021-11-22 23:04:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:00,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:00,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:00,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:00,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-22 23:04:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:00,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:04:00,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:04:00,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:04:01,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754212411] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:01,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:01,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2021-11-22 23:04:01,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617774248] [2021-11-22 23:04:01,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:01,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:04:01,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:01,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:04:01,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:04:01,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:01,244 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:01,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.0) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:01,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:01,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:01,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:01,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:01,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:01,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-22 23:04:01,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-22 23:04:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-22 23:04:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:04:05,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:06,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:06,136 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash 358971495, now seen corresponding path program 1 times [2021-11-22 23:04:06,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:06,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064367796] [2021-11-22 23:04:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:06,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:06,276 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:06,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:06,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064367796] [2021-11-22 23:04:06,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064367796] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:06,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490851558] [2021-11-22 23:04:06,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:06,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:06,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:06,278 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:06,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-22 23:04:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:06,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:04:06,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:06,764 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:06,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:07,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490851558] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:07,213 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:07,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2021-11-22 23:04:07,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958132327] [2021-11-22 23:04:07,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:07,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-22 23:04:07,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:07,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-22 23:04:07,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-11-22 23:04:07,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:07,215 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:07,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.35) internal successors, (127), 20 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:07,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:07,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:07,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-22 23:04:07,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:07,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:07,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-22 23:04:07,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:04:07,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-22 23:04:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:04:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:04:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:08,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-22 23:04:08,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-22 23:04:08,274 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:08,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:08,274 INFO L85 PathProgramCache]: Analyzing trace with hash 582616799, now seen corresponding path program 1 times [2021-11-22 23:04:08,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:08,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390900710] [2021-11-22 23:04:08,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:08,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:08,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:08,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390900710] [2021-11-22 23:04:08,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390900710] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:08,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57166883] [2021-11-22 23:04:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:08,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:08,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:08,463 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:08,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-22 23:04:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:08,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:04:08,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:08,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:09,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57166883] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:09,286 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:09,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2021-11-22 23:04:09,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261284347] [2021-11-22 23:04:09,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:09,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 23:04:09,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:09,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 23:04:09,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-11-22 23:04:09,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:09,288 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:09,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 19 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:09,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-22 23:04:09,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:09,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:09,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:04:09,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:04:09,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:09,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:11,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:11,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:04:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-22 23:04:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-22 23:04:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-22 23:04:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-22 23:04:11,693 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 23:04:11,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:11,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-22 23:04:11,922 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:04:11,923 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was SAFE (1/4) [2021-11-22 23:04:11,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:04:11,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:11,925 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:04:11,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2021-11-22 23:04:11,937 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-22 23:04:11,938 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:04:11,938 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:04:12,022 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:04:12,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:12,022 INFO L85 PathProgramCache]: Analyzing trace with hash 670576747, now seen corresponding path program 1 times [2021-11-22 23:04:12,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:12,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310102461] [2021-11-22 23:04:12,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:12,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:04:12,031 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:04:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:04:12,045 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 23:04:12,046 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 23:04:12,046 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-22 23:04:12,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 23:04:12,048 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-22 23:04:12,048 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/4) [2021-11-22 23:04:12,048 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-22 23:04:12,048 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-22 23:04:12,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,065 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,065 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,065 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,065 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,067 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,068 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,068 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,068 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,068 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,069 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,069 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,069 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,069 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,069 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,069 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,070 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,070 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,070 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,070 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,070 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,071 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,071 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,071 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,071 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,071 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,072 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,072 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,072 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,072 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,072 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,073 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,073 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,073 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,073 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,073 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,073 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,074 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,074 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,074 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,074 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,074 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,075 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,075 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,075 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,075 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,075 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,076 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,076 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,076 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,076 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,076 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,076 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,077 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,077 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,077 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,077 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,077 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,078 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,078 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,078 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,078 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,078 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,079 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,079 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,079 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,079 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,079 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,080 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,080 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,080 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,080 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,080 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,080 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,081 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,081 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,081 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,081 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,081 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,082 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,082 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,082 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,082 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,082 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,083 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,083 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,083 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,083 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,083 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,084 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,084 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,084 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,084 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,084 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,084 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,085 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,085 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,085 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,085 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,085 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,086 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,086 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,086 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,086 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,087 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,087 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,087 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,088 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,088 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,088 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,088 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,088 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,089 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,089 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,089 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,090 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,090 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,090 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,090 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,090 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,091 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,091 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,091 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,091 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,092 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,092 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,092 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,093 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,093 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,093 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,093 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,093 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,094 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,094 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:12,094 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 23:04:12,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:04:12,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:12,101 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:04:12,106 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of4ForFork0 ======== [2021-11-22 23:04:12,107 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:04:12,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:04:12,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2021-11-22 23:04:12,276 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:12,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:12,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1788934064, now seen corresponding path program 1 times [2021-11-22 23:04:12,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:12,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673511479] [2021-11-22 23:04:12,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:12,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:12,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:12,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673511479] [2021-11-22 23:04:12,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673511479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:04:12,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:04:12,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:04:12,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765865027] [2021-11-22 23:04:12,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:12,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:04:12,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:04:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:04:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:12,319 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:12,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:12,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:15,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 23:04:15,193 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:15,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1353328600, now seen corresponding path program 1 times [2021-11-22 23:04:15,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:15,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699019215] [2021-11-22 23:04:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:15,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:15,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:15,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699019215] [2021-11-22 23:04:15,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699019215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:04:15,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:04:15,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:04:15,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506767627] [2021-11-22 23:04:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:15,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:04:15,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:15,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:04:15,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:04:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:15,290 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:15,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:15,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:15,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:15,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 23:04:15,385 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:15,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1505649547, now seen corresponding path program 1 times [2021-11-22 23:04:15,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:15,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037699546] [2021-11-22 23:04:15,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:15,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:04:15,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:15,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037699546] [2021-11-22 23:04:15,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037699546] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:15,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215636236] [2021-11-22 23:04:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:15,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:15,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:15,516 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:15,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-22 23:04:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:15,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:04:15,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:04:15,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:04:16,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215636236] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:16,098 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:16,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2021-11-22 23:04:16,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131004056] [2021-11-22 23:04:16,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:16,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 23:04:16,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:16,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 23:04:16,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-11-22 23:04:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:16,100 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:16,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:16,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:16,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:16,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:04:16,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:16,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:16,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:16,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1660196744, now seen corresponding path program 1 times [2021-11-22 23:04:16,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:16,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281875463] [2021-11-22 23:04:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:16,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:04:16,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:16,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281875463] [2021-11-22 23:04:16,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281875463] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:16,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431965836] [2021-11-22 23:04:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:16,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:16,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:16,803 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:16,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-22 23:04:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:16,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:04:16,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:04:17,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:17,263 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:17,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431965836] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:17,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:04:17,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 8] total 14 [2021-11-22 23:04:17,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460120978] [2021-11-22 23:04:17,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:17,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:04:17,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:17,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:04:17,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-22 23:04:17,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:17,265 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:17,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:17,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:17,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:17,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:04:17,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:17,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:17,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:17,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 23:04:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:17,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:17,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-22 23:04:17,704 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:17,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:17,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1207234293, now seen corresponding path program 1 times [2021-11-22 23:04:17,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:17,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364323276] [2021-11-22 23:04:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:17,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:17,885 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:04:17,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:17,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364323276] [2021-11-22 23:04:17,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364323276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:17,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523478607] [2021-11-22 23:04:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:17,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:17,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:17,888 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:17,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-22 23:04:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:18,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:04:18,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:18,365 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:04:18,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:04:19,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523478607] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:19,027 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:19,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 22 [2021-11-22 23:04:19,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113068502] [2021-11-22 23:04:19,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:19,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:04:19,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:19,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:04:19,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:04:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:19,029 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:19,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:19,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:19,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:19,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-22 23:04:19,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:19,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:04:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:20,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:20,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-22 23:04:20,370 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1173393607, now seen corresponding path program 2 times [2021-11-22 23:04:20,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:20,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129521281] [2021-11-22 23:04:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:20,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:04:20,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:20,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129521281] [2021-11-22 23:04:20,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129521281] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:20,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856317093] [2021-11-22 23:04:20,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:04:20,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:20,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:20,560 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:20,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-22 23:04:20,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:04:20,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:04:20,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:04:20,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-22 23:04:20,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:04:20,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856317093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:04:20,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:04:20,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 13 [2021-11-22 23:04:20,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940065302] [2021-11-22 23:04:20,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:20,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:04:20,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:20,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:04:20,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-22 23:04:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:20,791 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:20,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:20,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:20,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:20,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:04:20,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:20,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:20,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:25,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:25,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:25,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:25,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:25,911 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1776263140, now seen corresponding path program 1 times [2021-11-22 23:04:25,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:25,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198362467] [2021-11-22 23:04:25,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:25,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:26,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:26,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198362467] [2021-11-22 23:04:26,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198362467] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:26,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157317171] [2021-11-22 23:04:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:26,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:26,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:26,052 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:26,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-22 23:04:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:26,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:04:26,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:26,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:26,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157317171] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:26,776 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:26,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2021-11-22 23:04:26,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217134032] [2021-11-22 23:04:26,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:26,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:04:26,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:26,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:04:26,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:04:26,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:26,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:26,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.545454545454546) internal successors, (122), 23 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:26,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:26,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:26,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:26,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:26,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:26,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:26,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:27,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:27,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:27,554 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:27,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:27,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2013724277, now seen corresponding path program 3 times [2021-11-22 23:04:27,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:27,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082358846] [2021-11-22 23:04:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:27,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:27,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:27,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082358846] [2021-11-22 23:04:27,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082358846] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:27,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921905813] [2021-11-22 23:04:27,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:04:27,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:27,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:27,711 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:27,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-22 23:04:27,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-22 23:04:27,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:04:27,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:04:27,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:28,323 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 35 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:28,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:04:28,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921905813] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:28,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:04:28,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11, 10] total 27 [2021-11-22 23:04:28,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413154316] [2021-11-22 23:04:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:28,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 23:04:28,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:28,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 23:04:28,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2021-11-22 23:04:28,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:28,830 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:28,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:04:29,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:29,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-22 23:04:29,639 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:29,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:29,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1839267595, now seen corresponding path program 1 times [2021-11-22 23:04:29,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:29,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147140256] [2021-11-22 23:04:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:29,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:29,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:29,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147140256] [2021-11-22 23:04:29,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147140256] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:29,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506026332] [2021-11-22 23:04:29,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:29,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:29,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:29,807 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:29,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-22 23:04:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:29,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:04:29,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:30,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:04:30,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506026332] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:30,753 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:30,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:04:30,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542800340] [2021-11-22 23:04:30,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:30,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:04:30,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:30,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:04:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:04:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:30,756 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:30,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.769230769230769) internal successors, (150), 27 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:30,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:04:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:04:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-22 23:04:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:04:32,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:33,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-22 23:04:33,107 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:33,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:33,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1107998418, now seen corresponding path program 1 times [2021-11-22 23:04:33,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:33,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823342357] [2021-11-22 23:04:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:33,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:04:33,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:33,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823342357] [2021-11-22 23:04:33,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823342357] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:33,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337942223] [2021-11-22 23:04:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:33,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:33,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:33,243 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:33,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-22 23:04:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:33,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:04:33,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:04:33,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:04:33,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337942223] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:33,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:04:33,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 9] total 15 [2021-11-22 23:04:33,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154917253] [2021-11-22 23:04:33,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:33,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:04:33,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:33,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:04:33,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-22 23:04:33,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:33,816 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:33,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:33,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:33,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:33,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:33,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:33,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:04:33,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:33,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-22 23:04:33,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:33,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:04:33,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:04:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:04:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-22 23:04:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:34,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:34,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:34,602 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -756674191, now seen corresponding path program 1 times [2021-11-22 23:04:34,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:34,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516724582] [2021-11-22 23:04:34,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:34,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:04:34,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:34,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516724582] [2021-11-22 23:04:34,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516724582] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:34,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028733294] [2021-11-22 23:04:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:34,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:34,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:34,785 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:34,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-22 23:04:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:34,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:04:34,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:04:35,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:04:35,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028733294] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:35,781 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:35,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:04:35,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430076699] [2021-11-22 23:04:35,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:35,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:04:35,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:35,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:04:35,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:04:35,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:35,783 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:35,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.538461538461538) internal successors, (144), 27 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:04:35,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:35,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:04:35,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:04:35,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:35,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:04:35,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:35,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:04:35,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:04:35,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-22 23:04:35,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:04:35,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:05:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:05:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:05:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:05:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:00,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-11-22 23:05:00,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:00,260 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:00,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:00,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1590613096, now seen corresponding path program 1 times [2021-11-22 23:05:00,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:00,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674201386] [2021-11-22 23:05:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:00,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:05:00,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:00,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674201386] [2021-11-22 23:05:00,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674201386] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:00,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314053397] [2021-11-22 23:05:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:00,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:00,409 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:00,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-22 23:05:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:00,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:05:00,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:05:00,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:05:01,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314053397] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:01,100 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:01,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2021-11-22 23:05:01,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40923847] [2021-11-22 23:05:01,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:01,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:05:01,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:01,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:05:01,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:05:01,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:01,102 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:01,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.0) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:01,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:01,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:01,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:05:01,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:01,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-22 23:05:01,872 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:01,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1789961977, now seen corresponding path program 4 times [2021-11-22 23:05:01,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:01,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449840850] [2021-11-22 23:05:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:01,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:02,173 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:05:02,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:02,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449840850] [2021-11-22 23:05:02,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449840850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:02,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200393763] [2021-11-22 23:05:02,174 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 23:05:02,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:02,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:02,175 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:02,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-22 23:05:02,254 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 23:05:02,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:05:02,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:05:02,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:05:02,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:03,021 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:05:03,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200393763] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:03,022 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:03,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:05:03,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417112875] [2021-11-22 23:05:03,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:03,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:05:03,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:03,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:05:03,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:05:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:03,024 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:03,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.538461538461538) internal successors, (144), 27 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:03,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:03,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:03,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:05:03,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:05:03,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:05:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:05:04,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:05,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-22 23:05:05,130 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:05,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash 601556085, now seen corresponding path program 1 times [2021-11-22 23:05:05,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:05,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308311797] [2021-11-22 23:05:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:05,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-22 23:05:05,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:05,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308311797] [2021-11-22 23:05:05,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308311797] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:05,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614256372] [2021-11-22 23:05:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:05,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:05,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:05,312 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:05,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-22 23:05:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:05,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:05:05,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-22 23:05:05,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-22 23:05:06,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614256372] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:06,229 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:06,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:05:06,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414729116] [2021-11-22 23:05:06,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:06,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:05:06,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:06,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:05:06,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:05:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:06,231 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:06,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 27 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:05:06,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:05:06,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:06,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:06,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:05:06,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:05:06,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:05:06,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:05:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-22 23:05:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-11-22 23:05:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:05:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:35,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:35,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-22 23:05:35,949 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:35,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:35,949 INFO L85 PathProgramCache]: Analyzing trace with hash -372408619, now seen corresponding path program 1 times [2021-11-22 23:05:35,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:35,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274162583] [2021-11-22 23:05:35,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:35,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:36,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:36,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274162583] [2021-11-22 23:05:36,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274162583] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:36,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400585662] [2021-11-22 23:05:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:36,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:36,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:36,065 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:36,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-22 23:05:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:36,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:05:36,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:36,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:36,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400585662] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:36,870 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:36,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2021-11-22 23:05:36,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497974916] [2021-11-22 23:05:36,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:36,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-22 23:05:36,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:36,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-22 23:05:36,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-11-22 23:05:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:36,872 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:36,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.35) internal successors, (127), 20 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:05:36,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:36,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-11-22 23:05:36,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:36,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-11-22 23:05:36,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:05:36,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:36,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:36,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:05:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:05:37,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:37,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-22 23:05:37,516 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash 663893625, now seen corresponding path program 5 times [2021-11-22 23:05:37,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:37,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436083722] [2021-11-22 23:05:37,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:37,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:37,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:37,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436083722] [2021-11-22 23:05:37,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436083722] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:37,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058845245] [2021-11-22 23:05:37,804 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 23:05:37,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:37,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:37,808 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:37,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-22 23:05:37,894 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-11-22 23:05:37,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:05:37,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:05:37,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:38,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:38,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058845245] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:38,726 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:38,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 22 [2021-11-22 23:05:38,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523009899] [2021-11-22 23:05:38,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:38,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:05:38,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:38,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:05:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:05:38,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:38,728 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:38,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.181818181818182) internal successors, (158), 23 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:38,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:38,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:38,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:38,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:38,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:05:38,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-22 23:05:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:05:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:05:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:05:41,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:42,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-22 23:05:42,129 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:42,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:42,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1390307868, now seen corresponding path program 1 times [2021-11-22 23:05:42,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:42,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85804536] [2021-11-22 23:05:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:42,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:42,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:42,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85804536] [2021-11-22 23:05:42,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85804536] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:42,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664954082] [2021-11-22 23:05:42,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:42,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:42,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:42,253 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:42,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-22 23:05:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:42,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:05:42,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:42,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-22 23:05:42,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664954082] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:42,867 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:42,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2021-11-22 23:05:42,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385969601] [2021-11-22 23:05:42,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:42,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 23:05:42,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:42,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 23:05:42,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-11-22 23:05:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:42,869 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:42,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 19 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:42,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:42,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:42,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:42,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:42,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:05:42,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:05:42,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:05:42,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:53,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-11-22 23:05:53,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:53,368 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:53,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 982860253, now seen corresponding path program 1 times [2021-11-22 23:05:53,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:53,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668621164] [2021-11-22 23:05:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:53,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:05:53,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:53,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668621164] [2021-11-22 23:05:53,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668621164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:05:53,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:05:53,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 23:05:53,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226882623] [2021-11-22 23:05:53,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:05:53,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 23:05:53,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:53,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 23:05:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:05:53,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:53,462 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:53,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:53,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:53,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:53,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:53,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:53,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:53,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:53,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:53,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:05:53,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-22 23:05:53,702 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:53,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:53,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1000106272, now seen corresponding path program 1 times [2021-11-22 23:05:53,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:53,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728680100] [2021-11-22 23:05:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:53,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:05:53,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:53,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728680100] [2021-11-22 23:05:53,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728680100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:05:53,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:05:53,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 23:05:53,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854498759] [2021-11-22 23:05:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:05:53,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 23:05:53,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:53,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 23:05:53,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:05:53,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:53,837 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:53,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:53,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:53,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:53,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:53,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:05:53,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:53,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:53,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:53,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:53,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:53,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:05:53,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:54,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:54,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:05:54,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:05:54,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-22 23:05:54,096 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:54,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:54,096 INFO L85 PathProgramCache]: Analyzing trace with hash -210579229, now seen corresponding path program 2 times [2021-11-22 23:05:54,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:54,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16262169] [2021-11-22 23:05:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:54,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:05:54,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:54,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16262169] [2021-11-22 23:05:54,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16262169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:05:54,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:05:54,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 23:05:54,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096353686] [2021-11-22 23:05:54,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:05:54,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 23:05:54,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:54,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 23:05:54,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:05:54,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:54,288 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:54,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:54,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:54,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:54,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:54,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:54,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:05:54,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:05:54,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:05:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:05:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:05:54,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-22 23:05:54,994 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:54,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1785701553, now seen corresponding path program 1 times [2021-11-22 23:05:54,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:54,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972893004] [2021-11-22 23:05:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:54,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:55,158 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:05:55,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:55,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972893004] [2021-11-22 23:05:55,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972893004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:05:55,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:05:55,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 23:05:55,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819105378] [2021-11-22 23:05:55,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:05:55,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 23:05:55,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:55,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 23:05:55,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:05:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:55,159 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:55,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:05:55,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:05:55,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:05:55,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:05:55,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:05:55,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:05:55,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:05:55,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:05:55,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-11-22 23:06:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-11-22 23:06:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:06:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:06:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:06:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:06:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:06:20,133 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 23:06:20,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-22 23:06:20,135 INFO L732 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:06:20,135 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread3of4ForFork0 was SAFE (1/5) [2021-11-22 23:06:20,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:06:20,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:20,155 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:06:20,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2021-11-22 23:06:20,160 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread4of4ForFork0 ======== [2021-11-22 23:06:20,161 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:06:20,161 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:06:20,234 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:20,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:20,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1285281119, now seen corresponding path program 1 times [2021-11-22 23:06:20,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:20,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116528477] [2021-11-22 23:06:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:20,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:20,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:20,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116528477] [2021-11-22 23:06:20,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116528477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:06:20,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:06:20,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:06:20,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4029813] [2021-11-22 23:06:20,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:20,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:06:20,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:20,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:06:20,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:06:20,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:20,271 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:20,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:20,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:22,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-22 23:06:22,454 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:22,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:22,455 INFO L85 PathProgramCache]: Analyzing trace with hash 658694344, now seen corresponding path program 1 times [2021-11-22 23:06:22,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:22,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639113548] [2021-11-22 23:06:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:22,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:22,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:22,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639113548] [2021-11-22 23:06:22,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639113548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:06:22,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:06:22,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:06:22,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577499828] [2021-11-22 23:06:22,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:22,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:06:22,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:22,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:06:22,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:06:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:22,517 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:22,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:22,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:22,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:22,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-22 23:06:22,626 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:22,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:22,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2143944331, now seen corresponding path program 1 times [2021-11-22 23:06:22,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:22,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405832751] [2021-11-22 23:06:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:22,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:22,735 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:06:22,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:22,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405832751] [2021-11-22 23:06:22,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405832751] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:22,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807556511] [2021-11-22 23:06:22,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:22,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:22,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:22,741 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:22,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-22 23:06:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:22,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:06:22,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:23,156 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:06:23,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:06:23,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807556511] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:23,405 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:23,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2021-11-22 23:06:23,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175482405] [2021-11-22 23:06:23,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:23,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 23:06:23,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:23,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 23:06:23,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-11-22 23:06:23,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:23,407 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:23,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.625) internal successors, (122), 16 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:23,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:23,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 23:06:23,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-11-22 23:06:23,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:23,931 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:23,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash -547075032, now seen corresponding path program 1 times [2021-11-22 23:06:23,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:23,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848884186] [2021-11-22 23:06:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:23,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:06:24,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:24,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848884186] [2021-11-22 23:06:24,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848884186] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:24,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370602510] [2021-11-22 23:06:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:24,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:24,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:24,064 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:24,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-22 23:06:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:24,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:06:24,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:06:24,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:24,524 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:06:24,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370602510] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:24,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:06:24,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 9] total 15 [2021-11-22 23:06:24,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901921712] [2021-11-22 23:06:24,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:24,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:06:24,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:24,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:06:24,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-22 23:06:24,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:24,525 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:24,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:24,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:24,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:24,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-22 23:06:24,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-22 23:06:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:24,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:24,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:24,824 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:24,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:24,824 INFO L85 PathProgramCache]: Analyzing trace with hash 508334315, now seen corresponding path program 1 times [2021-11-22 23:06:24,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:24,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489060276] [2021-11-22 23:06:24,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:24,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:06:24,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:24,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489060276] [2021-11-22 23:06:24,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489060276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:24,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257035544] [2021-11-22 23:06:24,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:24,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:24,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:24,983 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:24,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-22 23:06:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:25,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:06:25,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:06:25,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:06:25,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257035544] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:25,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:06:25,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 10] total 16 [2021-11-22 23:06:25,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897014701] [2021-11-22 23:06:25,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:25,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:06:25,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:25,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:06:25,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-11-22 23:06:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:25,428 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:25,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:25,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:25,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:25,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-22 23:06:25,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:25,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:25,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:25,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-22 23:06:25,876 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:25,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1479969489, now seen corresponding path program 1 times [2021-11-22 23:06:25,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:25,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970097745] [2021-11-22 23:06:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:25,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 53 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:06:26,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:26,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970097745] [2021-11-22 23:06:26,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970097745] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:26,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723163050] [2021-11-22 23:06:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:26,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:26,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:26,016 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:26,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-22 23:06:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:26,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:06:26,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 24 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:06:26,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:06:26,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723163050] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:26,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:06:26,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10, 6] total 13 [2021-11-22 23:06:26,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376154011] [2021-11-22 23:06:26,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:26,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:06:26,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:26,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:06:26,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-22 23:06:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:26,357 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:26,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:26,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:26,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:26,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:26,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:26,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-22 23:06:26,647 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:26,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2051459633, now seen corresponding path program 2 times [2021-11-22 23:06:26,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:26,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020970885] [2021-11-22 23:06:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:26,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:06:26,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:26,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020970885] [2021-11-22 23:06:26,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020970885] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:26,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806090084] [2021-11-22 23:06:26,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:06:26,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:26,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:26,802 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:26,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-22 23:06:26,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:06:26,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:06:26,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:06:26,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:06:27,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:06:27,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806090084] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:27,558 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:27,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 21 [2021-11-22 23:06:27,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202392707] [2021-11-22 23:06:27,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:27,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-22 23:06:27,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:27,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-22 23:06:27,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2021-11-22 23:06:27,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:27,559 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:27,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.190476190476191) internal successors, (151), 22 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:27,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:27,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:06:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-22 23:06:30,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:30,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:30,589 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:30,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:30,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1161571765, now seen corresponding path program 1 times [2021-11-22 23:06:30,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:30,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559714804] [2021-11-22 23:06:30,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:30,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:06:30,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:30,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559714804] [2021-11-22 23:06:30,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559714804] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:30,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973287504] [2021-11-22 23:06:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:30,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:30,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:30,768 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:30,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-22 23:06:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:30,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:06:30,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:06:31,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:06:31,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973287504] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:31,766 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:31,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 22 [2021-11-22 23:06:31,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743029852] [2021-11-22 23:06:31,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:31,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:06:31,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:31,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:06:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:06:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:31,769 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:31,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:31,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:31,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:31,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:06:31,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:31,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:31,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:31,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-11-22 23:06:31,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:06:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:06:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-22 23:06:36,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:36,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-11-22 23:06:36,718 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:36,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:36,718 INFO L85 PathProgramCache]: Analyzing trace with hash 587411403, now seen corresponding path program 2 times [2021-11-22 23:06:36,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:36,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058595738] [2021-11-22 23:06:36,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:36,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:36,910 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:36,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:36,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058595738] [2021-11-22 23:06:36,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058595738] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:36,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633014649] [2021-11-22 23:06:36,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:06:36,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:36,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:36,916 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:36,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-22 23:06:36,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:06:36,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:06:36,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:06:36,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:37,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:37,724 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:37,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633014649] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:37,724 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:37,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:06:37,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902330305] [2021-11-22 23:06:37,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:37,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:06:37,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:37,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:06:37,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:06:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:37,726 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:37,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.538461538461538) internal successors, (144), 27 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:37,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:37,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:37,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:06:37,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:37,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:37,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:37,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:06:37,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-22 23:06:37,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:39,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:06:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:06:39,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:39,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:39,270 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:39,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:39,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1773086427, now seen corresponding path program 1 times [2021-11-22 23:06:39,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:39,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590780425] [2021-11-22 23:06:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:39,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:39,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:39,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590780425] [2021-11-22 23:06:39,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590780425] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:39,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163584967] [2021-11-22 23:06:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:39,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:39,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:39,449 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:39,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-22 23:06:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:39,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:06:39,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:39,953 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:39,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:06:40,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163584967] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:40,392 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:40,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 27 [2021-11-22 23:06:40,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539274203] [2021-11-22 23:06:40,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:40,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-22 23:06:40,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:40,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-22 23:06:40,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2021-11-22 23:06:40,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:40,394 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:40,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.0) internal successors, (135), 28 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:06:40,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:06:40,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:55,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:55,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:06:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:55,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:55,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:55,937 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:55,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:55,937 INFO L85 PathProgramCache]: Analyzing trace with hash 308215279, now seen corresponding path program 1 times [2021-11-22 23:06:55,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:55,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691805942] [2021-11-22 23:06:55,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:55,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:06:56,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:56,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691805942] [2021-11-22 23:06:56,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691805942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:06:56,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:06:56,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 23:06:56,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933530136] [2021-11-22 23:06:56,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:56,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 23:06:56,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:56,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 23:06:56,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:06:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:56,036 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:56,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:56,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:56,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:56,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-22 23:06:56,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:56,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:56,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:56,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:06:56,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:56,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:06:56,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:56,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:06:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:56,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:06:56,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:06:56,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-22 23:06:56,239 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:56,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash -911573681, now seen corresponding path program 3 times [2021-11-22 23:06:56,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:56,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209122273] [2021-11-22 23:06:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:56,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:06:56,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:56,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209122273] [2021-11-22 23:06:56,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209122273] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:56,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603570625] [2021-11-22 23:06:56,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:06:56,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:56,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:56,404 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:56,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-22 23:06:56,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-22 23:06:56,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:06:56,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:06:56,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:06:56,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:06:56,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603570625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:06:56,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:06:56,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2021-11-22 23:06:56,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051029658] [2021-11-22 23:06:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:56,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 23:06:56,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 23:06:56,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-22 23:06:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:56,688 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:56,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:56,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:56,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:06:56,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-22 23:06:56,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:56,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:06:56,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:56,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:06:56,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:56,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:06:56,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:06:56,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:06:56,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:02,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:02,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:02,579 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:02,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash 196658511, now seen corresponding path program 1 times [2021-11-22 23:07:02,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:02,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465786286] [2021-11-22 23:07:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:02,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:02,734 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:07:02,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:02,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465786286] [2021-11-22 23:07:02,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465786286] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:02,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587436050] [2021-11-22 23:07:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:02,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:02,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:02,740 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:02,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-22 23:07:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:03,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:07:03,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:07:03,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:07:03,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587436050] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:03,760 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:03,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 22 [2021-11-22 23:07:03,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516518705] [2021-11-22 23:07:03,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:03,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:07:03,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:07:03,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:07:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:03,761 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:03,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-22 23:07:09,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:09,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:09,215 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1945641679, now seen corresponding path program 2 times [2021-11-22 23:07:09,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:09,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986640364] [2021-11-22 23:07:09,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:09,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:07:09,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:09,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986640364] [2021-11-22 23:07:09,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986640364] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:09,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834116613] [2021-11-22 23:07:09,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:07:09,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:09,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:09,364 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:09,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-11-22 23:07:09,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:07:09,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:07:09,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:07:09,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:07:09,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:07:10,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834116613] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:10,210 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:10,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:07:10,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945296038] [2021-11-22 23:07:10,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:10,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:07:10,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:10,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:07:10,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:07:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:10,212 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:10,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.538461538461538) internal successors, (144), 27 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:10,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:10,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:10,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:10,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:10,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:10,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:10,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:10,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:10,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:07:10,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:07:10,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:10,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:10,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-22 23:07:10,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:07:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:07:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-22 23:07:12,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:12,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-22 23:07:12,406 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:12,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:12,406 INFO L85 PathProgramCache]: Analyzing trace with hash 619449327, now seen corresponding path program 1 times [2021-11-22 23:07:12,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:12,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286803623] [2021-11-22 23:07:12,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:12,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:07:12,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:12,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286803623] [2021-11-22 23:07:12,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286803623] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:12,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085413737] [2021-11-22 23:07:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:12,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:12,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:12,569 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:12,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-11-22 23:07:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:12,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:07:12,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:07:13,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-22 23:07:13,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085413737] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:13,608 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:13,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 27 [2021-11-22 23:07:13,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316225139] [2021-11-22 23:07:13,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:13,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-22 23:07:13,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:13,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-22 23:07:13,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2021-11-22 23:07:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:13,609 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:13,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.0) internal successors, (135), 28 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:13,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:13,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:13,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:13,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:13,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:13,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:07:13,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-11-22 23:07:13,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:07:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-11-22 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:25,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:25,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-22 23:07:25,393 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:25,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:25,393 INFO L85 PathProgramCache]: Analyzing trace with hash -735669048, now seen corresponding path program 1 times [2021-11-22 23:07:25,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:25,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926743230] [2021-11-22 23:07:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:25,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:25,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:25,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926743230] [2021-11-22 23:07:25,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926743230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:07:25,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:07:25,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 23:07:25,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791091799] [2021-11-22 23:07:25,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:07:25,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 23:07:25,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:25,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 23:07:25,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-22 23:07:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:25,493 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:25,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-11-22 23:07:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:25,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:25,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:25,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:07:25,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:25,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:25,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:07:25,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:25,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:07:25,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-22 23:07:25,720 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:25,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1052073675, now seen corresponding path program 3 times [2021-11-22 23:07:25,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:25,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818732699] [2021-11-22 23:07:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:25,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:25,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:25,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818732699] [2021-11-22 23:07:25,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818732699] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:25,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707493146] [2021-11-22 23:07:25,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:07:25,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:25,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:25,884 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:25,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-22 23:07:25,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-22 23:07:25,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:07:25,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:25,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:26,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:26,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707493146] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:26,570 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:26,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 21 [2021-11-22 23:07:26,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977057987] [2021-11-22 23:07:26,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:26,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-22 23:07:26,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:26,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-22 23:07:26,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2021-11-22 23:07:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:26,571 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:26,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.0476190476190474) internal successors, (127), 22 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-11-22 23:07:26,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:07:26,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:07:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:07:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:07:36,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-11-22 23:07:36,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:36,988 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:36,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:36,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1110621003, now seen corresponding path program 3 times [2021-11-22 23:07:36,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:36,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338946941] [2021-11-22 23:07:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:36,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:37,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:37,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338946941] [2021-11-22 23:07:37,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338946941] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:37,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178898744] [2021-11-22 23:07:37,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:07:37,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:37,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:37,148 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:37,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-22 23:07:37,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-22 23:07:37,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:07:37,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:07:37,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:37,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:37,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178898744] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:37,795 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:37,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 21 [2021-11-22 23:07:37,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890232564] [2021-11-22 23:07:37,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:37,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-22 23:07:37,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:37,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-22 23:07:37,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2021-11-22 23:07:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:37,797 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:37,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.0476190476190474) internal successors, (127), 22 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:37,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:37,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:37,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:37,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:37,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:37,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:37,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:37,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:07:37,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:07:37,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-11-22 23:07:37,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:42,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:42,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:42,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:42,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-22 23:07:42,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:07:42,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:42,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:42,323 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:42,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:42,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1955852088, now seen corresponding path program 2 times [2021-11-22 23:07:42,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:42,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131623487] [2021-11-22 23:07:42,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:42,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:42,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:42,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131623487] [2021-11-22 23:07:42,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131623487] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:42,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398774479] [2021-11-22 23:07:42,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:07:42,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:42,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:42,456 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:42,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-22 23:07:42,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-22 23:07:42,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:07:42,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 23:07:42,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:07:42,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:07:42,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398774479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:07:42,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:07:42,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2021-11-22 23:07:42,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209625851] [2021-11-22 23:07:42,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:07:42,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:07:42,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:07:42,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-22 23:07:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:42,657 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:42,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:42,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:42,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:42,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:42,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:42,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-11-22 23:07:42,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:07:42,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-22 23:07:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:07:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:42,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:42,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:42,968 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:42,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash 440679499, now seen corresponding path program 4 times [2021-11-22 23:07:42,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:42,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477311064] [2021-11-22 23:07:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:42,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:43,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:43,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477311064] [2021-11-22 23:07:43,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477311064] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:43,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613016680] [2021-11-22 23:07:43,123 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 23:07:43,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:43,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:43,140 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:43,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-22 23:07:43,222 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 23:07:43,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:07:43,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:07:43,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:43,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:43,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613016680] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:43,908 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:43,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:07:43,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465686217] [2021-11-22 23:07:43,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:43,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:07:43,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:07:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:07:43,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:43,910 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:43,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 27 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:43,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:07:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:07:45,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:45,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-11-22 23:07:45,704 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:07:45,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:45,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1847359579, now seen corresponding path program 1 times [2021-11-22 23:07:45,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:45,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6202288] [2021-11-22 23:07:45,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:45,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:45,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:45,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6202288] [2021-11-22 23:07:45,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6202288] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:45,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461709030] [2021-11-22 23:07:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:45,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:45,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:45,863 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:45,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-22 23:07:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:45,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:07:45,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:46,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:07:46,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461709030] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:46,713 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:46,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:07:46,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467393802] [2021-11-22 23:07:46,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:46,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:07:46,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:46,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:07:46,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:07:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:46,715 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:46,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.846153846153846) internal successors, (126), 27 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:46,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:07:46,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-11-22 23:08:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:37,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-11-22 23:08:37,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:08:37,560 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:08:37,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:08:37,560 INFO L85 PathProgramCache]: Analyzing trace with hash -770827829, now seen corresponding path program 5 times [2021-11-22 23:08:37,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:08:37,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863065861] [2021-11-22 23:08:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:08:37,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:37,694 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:37,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:08:37,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863065861] [2021-11-22 23:08:37,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863065861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:08:37,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255825702] [2021-11-22 23:08:37,695 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 23:08:37,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:08:37,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:08:37,696 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:08:37,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-11-22 23:08:37,765 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-11-22 23:08:37,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:08:37,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:08:37,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:38,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:08:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:38,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255825702] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:08:38,365 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:08:38,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 22 [2021-11-22 23:08:38,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858768275] [2021-11-22 23:08:38,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:08:38,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:08:38,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:08:38,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:08:38,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:08:38,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:08:38,366 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:08:38,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.0) internal successors, (132), 23 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2021-11-22 23:08:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2021-11-22 23:08:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:08:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:08:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:08:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:38,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:38,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:38,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:08:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:08:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-11-22 23:08:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:39,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:08:39,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-11-22 23:08:39,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:08:39,480 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:08:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:08:39,481 INFO L85 PathProgramCache]: Analyzing trace with hash 102930981, now seen corresponding path program 2 times [2021-11-22 23:08:39,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:08:39,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999090368] [2021-11-22 23:08:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:08:39,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:39,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:08:39,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999090368] [2021-11-22 23:08:39,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999090368] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:08:39,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466388762] [2021-11-22 23:08:39,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:08:39,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:08:39,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:08:39,621 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:08:39,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-22 23:08:39,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:08:39,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:08:39,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:08:39,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:40,005 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:40,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:08:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:40,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466388762] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:08:40,467 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:08:40,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 22 [2021-11-22 23:08:40,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493598424] [2021-11-22 23:08:40,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:08:40,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:08:40,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:08:40,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:08:40,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:08:40,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:08:40,468 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:08:40,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.7272727272727275) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:40,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:08:40,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:43,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:08:43,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-22 23:08:43,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-22 23:08:43,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-11-22 23:08:43,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-22 23:08:43,567 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:08:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:08:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1039126747, now seen corresponding path program 2 times [2021-11-22 23:08:43,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:08:43,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765874760] [2021-11-22 23:08:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:08:43,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:08:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:08:43,717 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:43,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:08:43,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765874760] [2021-11-22 23:08:43,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765874760] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:08:43,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738872915] [2021-11-22 23:08:43,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:08:43,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:08:43,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:08:43,719 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:08:43,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-22 23:08:43,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:08:43,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:08:43,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:08:43,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:08:44,149 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:44,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:08:44,472 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-22 23:08:44,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738872915] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:08:44,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:08:44,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 22 [2021-11-22 23:08:44,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697820704] [2021-11-22 23:08:44,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:08:44,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:08:44,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:08:44,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:08:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:08:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:08:44,473 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:08:44,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.7272727272727275) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-11-22 23:08:44,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-22 23:08:44,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2021-11-22 23:09:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:09:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:09:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:09:10,954 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 23:09:10,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-22 23:09:11,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-11-22 23:09:11,157 INFO L732 BasicCegarLoop]: Path program histogram: [5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:09:11,157 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread4of4ForFork0 was SAFE (2/5) [2021-11-22 23:09:11,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:09:11,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:11,162 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:09:11,184 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of4ForFork0 ======== [2021-11-22 23:09:11,185 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:09:11,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:09:11,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (51)] Waiting until timeout for monitored process [2021-11-22 23:09:14,637 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:14,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash -781406249, now seen corresponding path program 1 times [2021-11-22 23:09:14,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:14,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713555224] [2021-11-22 23:09:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:14,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:09:14,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:14,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713555224] [2021-11-22 23:09:14,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713555224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:09:14,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:09:14,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 23:09:14,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840244579] [2021-11-22 23:09:14,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:09:14,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:09:14,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:14,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:09:14,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:09:14,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:14,676 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:14,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:14,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:14,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-22 23:09:14,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:14,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:14,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1384196569, now seen corresponding path program 1 times [2021-11-22 23:09:14,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:14,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102158327] [2021-11-22 23:09:14,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:14,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:09:14,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:14,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102158327] [2021-11-22 23:09:14,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102158327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:09:14,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:09:14,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:09:14,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752496107] [2021-11-22 23:09:14,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:09:14,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:09:14,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:14,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:09:14,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:09:14,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:14,771 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:14,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:14,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:14,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:15,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:15,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:15,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-22 23:09:15,056 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:15,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:15,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2037009104, now seen corresponding path program 1 times [2021-11-22 23:09:15,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:15,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815303149] [2021-11-22 23:09:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:15,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:15,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:15,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815303149] [2021-11-22 23:09:15,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815303149] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:15,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094517157] [2021-11-22 23:09:15,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:15,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:15,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:15,149 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:15,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-11-22 23:09:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:15,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 23:09:15,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:15,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:09:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:15,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094517157] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:09:15,732 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:09:15,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 14 [2021-11-22 23:09:15,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105971849] [2021-11-22 23:09:15,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:09:15,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 23:09:15,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:15,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 23:09:15,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2021-11-22 23:09:15,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:15,733 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:15,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 15 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:15,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:15,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:15,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:09:15,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2021-11-22 23:09:16,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2021-11-22 23:09:16,106 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:16,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:16,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1284668474, now seen corresponding path program 1 times [2021-11-22 23:09:16,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:16,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909590895] [2021-11-22 23:09:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:16,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:16,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:16,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909590895] [2021-11-22 23:09:16,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909590895] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:16,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970703036] [2021-11-22 23:09:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:16,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:16,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:16,213 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:16,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-22 23:09:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:16,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:09:16,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:16,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:09:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:16,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970703036] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:09:16,803 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:09:16,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2021-11-22 23:09:16,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912690999] [2021-11-22 23:09:16,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:09:16,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 23:09:16,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:16,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 23:09:16,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-11-22 23:09:16,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:16,804 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:16,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.888888888888889) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:16,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:16,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:16,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:09:16,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:09:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:09:17,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-11-22 23:09:17,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:17,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:17,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1979239503, now seen corresponding path program 1 times [2021-11-22 23:09:17,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:17,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584550578] [2021-11-22 23:09:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:17,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:17,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:17,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584550578] [2021-11-22 23:09:17,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584550578] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:17,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585973179] [2021-11-22 23:09:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:17,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:17,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:17,529 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:17,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-11-22 23:09:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:17,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:09:17,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:18,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:09:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:09:18,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585973179] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:09:18,478 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:09:18,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 22 [2021-11-22 23:09:18,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691509303] [2021-11-22 23:09:18,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:09:18,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:09:18,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:18,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:09:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:09:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:18,480 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:18,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.181818181818182) internal successors, (158), 23 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:18,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:18,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:18,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:09:18,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:09:18,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:09:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:09:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:09:19,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-11-22 23:09:19,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:19,708 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1230745581, now seen corresponding path program 1 times [2021-11-22 23:09:19,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:19,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905988297] [2021-11-22 23:09:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:19,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 23:09:19,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:19,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905988297] [2021-11-22 23:09:19,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905988297] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:19,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354921923] [2021-11-22 23:09:19,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:19,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:19,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:19,846 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:19,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-22 23:09:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:19,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 23:09:19,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:19,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:09:19,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354921923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:09:19,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:09:19,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12 [2021-11-22 23:09:19,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278897690] [2021-11-22 23:09:19,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:09:20,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:09:20,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:20,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:09:20,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:09:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:20,000 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:20,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:09:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:09:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-11-22 23:09:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:09:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:09:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-11-22 23:09:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:32,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-22 23:09:33,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-11-22 23:09:33,013 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:33,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:33,013 INFO L85 PathProgramCache]: Analyzing trace with hash 184116133, now seen corresponding path program 1 times [2021-11-22 23:09:33,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:33,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275095185] [2021-11-22 23:09:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:33,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:33,090 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:09:33,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:33,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275095185] [2021-11-22 23:09:33,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275095185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:09:33,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:09:33,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 23:09:33,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117602566] [2021-11-22 23:09:33,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:09:33,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 23:09:33,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:33,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 23:09:33,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:09:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:33,092 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:33,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:33,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:33,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:09:33,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:09:33,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2021-11-22 23:09:33,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:09:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:09:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-11-22 23:09:33,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:33,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-22 23:09:33,227 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:33,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:33,227 INFO L85 PathProgramCache]: Analyzing trace with hash -515478104, now seen corresponding path program 1 times [2021-11-22 23:09:33,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:33,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255140438] [2021-11-22 23:09:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:33,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:33,358 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:09:33,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:33,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255140438] [2021-11-22 23:09:33,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255140438] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:33,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14656060] [2021-11-22 23:09:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:33,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:33,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:33,364 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:33,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-22 23:09:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:33,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:09:33,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:09:33,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:09:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:33,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14656060] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:33,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:09:33,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 9] total 17 [2021-11-22 23:09:33,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200878474] [2021-11-22 23:09:33,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:09:33,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:09:33,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:33,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:09:33,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-22 23:09:33,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:33,774 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:33,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:33,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:33,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-11-22 23:09:33,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-22 23:09:33,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2021-11-22 23:09:33,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:33,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:33,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:33,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-22 23:09:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-22 23:09:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-11-22 23:09:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:33,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-11-22 23:09:34,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-11-22 23:09:34,156 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:34,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:34,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1377740869, now seen corresponding path program 2 times [2021-11-22 23:09:34,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:34,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220531244] [2021-11-22 23:09:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:34,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:09:34,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:34,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220531244] [2021-11-22 23:09:34,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220531244] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:34,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849738934] [2021-11-22 23:09:34,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:09:34,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:34,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:34,304 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:34,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-11-22 23:09:34,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:09:34,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:09:34,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:09:34,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:09:34,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:09:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-22 23:09:35,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849738934] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:09:35,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:09:35,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 28 [2021-11-22 23:09:35,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549517523] [2021-11-22 23:09:35,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:09:35,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-22 23:09:35,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:35,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-22 23:09:35,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-11-22 23:09:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:35,094 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:35,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.321428571428571) internal successors, (149), 29 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:35,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:35,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-22 23:09:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:09:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-22 23:09:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:09:37,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-11-22 23:09:37,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-11-22 23:09:37,778 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1527362151, now seen corresponding path program 1 times [2021-11-22 23:09:37,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:37,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599411134] [2021-11-22 23:09:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:37,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:09:37,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:37,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599411134] [2021-11-22 23:09:37,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599411134] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:37,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109539902] [2021-11-22 23:09:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:37,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:37,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:37,957 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:37,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-22 23:09:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:38,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:09:38,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:09:38,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:09:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-22 23:09:38,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109539902] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:09:38,948 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:09:38,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 28 [2021-11-22 23:09:38,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901939686] [2021-11-22 23:09:38,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:09:38,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-22 23:09:38,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:38,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-22 23:09:38,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-11-22 23:09:38,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:38,950 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:38,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.678571428571429) internal successors, (131), 29 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:38,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:38,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:38,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-11-22 23:09:38,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:09:38,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-22 23:09:38,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:38,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:38,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:38,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:09:38,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-22 23:09:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:09:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:09:55,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:09:55,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:09:55,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-11-22 23:09:55,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-11-22 23:09:55,339 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:55,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:55,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1706101877, now seen corresponding path program 2 times [2021-11-22 23:09:55,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:55,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132238114] [2021-11-22 23:09:55,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:55,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:55,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:55,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132238114] [2021-11-22 23:09:55,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132238114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:09:55,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:09:55,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 23:09:55,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268208721] [2021-11-22 23:09:55,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:09:55,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 23:09:55,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:55,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 23:09:55,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:09:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:55,418 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:55,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:55,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:55,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:09:55,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:09:55,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:09:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:09:56,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:56,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-22 23:09:56,180 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:56,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:56,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1110379288, now seen corresponding path program 1 times [2021-11-22 23:09:56,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:56,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131191453] [2021-11-22 23:09:56,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:56,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:56,298 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:56,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:56,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131191453] [2021-11-22 23:09:56,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131191453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:09:56,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:09:56,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 23:09:56,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716537481] [2021-11-22 23:09:56,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:09:56,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 23:09:56,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:56,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 23:09:56,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:09:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:56,299 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:56,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:09:56,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:09:56,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:56,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:56,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:56,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:56,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:09:56,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:09:56,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:09:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:09:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:09:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:09:56,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-22 23:09:56,800 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:56,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:56,800 INFO L85 PathProgramCache]: Analyzing trace with hash -166579003, now seen corresponding path program 3 times [2021-11-22 23:09:56,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:56,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810266143] [2021-11-22 23:09:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:56,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:56,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:56,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810266143] [2021-11-22 23:09:56,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810266143] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:56,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920238669] [2021-11-22 23:09:56,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:09:56,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:56,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:56,945 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:56,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-11-22 23:09:57,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-22 23:09:57,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:09:57,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:09:57,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:09:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:57,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:09:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:57,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920238669] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:09:57,722 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:09:57,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 28 [2021-11-22 23:09:57,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864301300] [2021-11-22 23:09:57,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:09:57,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-22 23:09:57,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:09:57,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-22 23:09:57,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-11-22 23:09:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:57,723 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:09:57,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:09:57,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:57,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:57,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:09:57,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:09:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:09:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:09:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-22 23:09:59,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-11-22 23:09:59,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2021-11-22 23:09:59,884 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:09:59,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:09:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash 302021758, now seen corresponding path program 1 times [2021-11-22 23:09:59,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:09:59,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454649736] [2021-11-22 23:09:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:59,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:09:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:09:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:09:59,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:09:59,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454649736] [2021-11-22 23:09:59,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454649736] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:09:59,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052130658] [2021-11-22 23:09:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:09:59,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:09:59,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:09:59,993 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:09:59,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-11-22 23:10:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:00,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:10:00,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:10:00,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:10:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:10:00,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052130658] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:00,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:10:00,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 9] total 17 [2021-11-22 23:10:00,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528412584] [2021-11-22 23:10:00,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:10:00,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:10:00,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:00,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:10:00,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-22 23:10:00,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:00,384 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:00,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:00,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:00,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:00,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:00,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:10:00,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:10:00,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-22 23:10:00,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:10:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:10:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:01,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-11-22 23:10:01,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:01,394 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:01,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1357989825, now seen corresponding path program 1 times [2021-11-22 23:10:01,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:01,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291942656] [2021-11-22 23:10:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:01,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:10:01,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:01,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291942656] [2021-11-22 23:10:01,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291942656] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:01,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75439475] [2021-11-22 23:10:01,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:01,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:01,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:10:01,565 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:10:01,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-11-22 23:10:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:01,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:01,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:10:02,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:10:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:10:02,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75439475] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:10:02,408 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:10:02,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 28 [2021-11-22 23:10:02,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134581993] [2021-11-22 23:10:02,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:10:02,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-22 23:10:02,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:02,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-22 23:10:02,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-11-22 23:10:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:02,410 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:02,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:10:02,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:10:02,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:10:02,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:02,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:10:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-22 23:10:17,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-11-22 23:10:17,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-11-22 23:10:17,575 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:17,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:17,575 INFO L85 PathProgramCache]: Analyzing trace with hash 573182172, now seen corresponding path program 2 times [2021-11-22 23:10:17,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:17,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341101496] [2021-11-22 23:10:17,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:17,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:10:17,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:17,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341101496] [2021-11-22 23:10:17,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341101496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:10:17,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:10:17,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 23:10:17,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088882400] [2021-11-22 23:10:17,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:10:17,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 23:10:17,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:17,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 23:10:17,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:10:17,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:17,754 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:17,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:10:17,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:10:17,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:17,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-11-22 23:10:17,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:10:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:10:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:10:18,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-22 23:10:18,468 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:18,468 INFO L85 PathProgramCache]: Analyzing trace with hash -49857377, now seen corresponding path program 2 times [2021-11-22 23:10:18,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:18,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776548795] [2021-11-22 23:10:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:18,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:18,641 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:10:18,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:18,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776548795] [2021-11-22 23:10:18,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776548795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:10:18,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:10:18,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 23:10:18,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940573301] [2021-11-22 23:10:18,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:10:18,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 23:10:18,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 23:10:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:10:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:18,642 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:18,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:10:18,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:19,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:10:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-11-22 23:10:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:10:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:10:19,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-22 23:10:19,821 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:19,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:19,821 INFO L85 PathProgramCache]: Analyzing trace with hash 710234161, now seen corresponding path program 1 times [2021-11-22 23:10:19,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:19,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407445930] [2021-11-22 23:10:19,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:19,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:10:19,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:19,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407445930] [2021-11-22 23:10:19,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407445930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:10:19,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:10:19,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 23:10:19,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011814096] [2021-11-22 23:10:19,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:10:19,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 23:10:19,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:19,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 23:10:19,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:10:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:19,984 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:19,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-11-22 23:10:19,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:10:19,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:10:19,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:10:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-22 23:10:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:10:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:10:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:10:38,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 23:10:38,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-22 23:10:38,910 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:10:38,910 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of4ForFork0 was SAFE (3/5) [2021-11-22 23:10:38,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:10:38,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:10:38,911 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:10:38,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (62)] Waiting until timeout for monitored process [2021-11-22 23:10:38,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of4ForFork0 ======== [2021-11-22 23:10:38,913 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:10:38,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:10:39,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:39,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:39,129 INFO L85 PathProgramCache]: Analyzing trace with hash -751346070, now seen corresponding path program 1 times [2021-11-22 23:10:39,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:39,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151500928] [2021-11-22 23:10:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:39,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:39,150 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:10:39,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:39,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151500928] [2021-11-22 23:10:39,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151500928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:10:39,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:10:39,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:10:39,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204949783] [2021-11-22 23:10:39,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:10:39,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:10:39,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:39,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:10:39,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:10:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:39,152 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:39,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:39,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:40,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:40,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-22 23:10:40,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2093946137, now seen corresponding path program 1 times [2021-11-22 23:10:40,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:40,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509650535] [2021-11-22 23:10:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:40,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:10:40,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:40,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509650535] [2021-11-22 23:10:40,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509650535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:10:40,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:10:40,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:10:40,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653412074] [2021-11-22 23:10:40,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:10:40,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:10:40,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:40,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:10:40,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:10:40,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:40,796 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:40,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:40,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:40,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:40,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:40,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-22 23:10:40,833 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:40,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash 338980842, now seen corresponding path program 1 times [2021-11-22 23:10:40,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:40,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57699084] [2021-11-22 23:10:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:40,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:10:40,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:40,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57699084] [2021-11-22 23:10:40,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57699084] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:40,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285337067] [2021-11-22 23:10:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:40,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:40,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:10:40,925 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:10:40,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-22 23:10:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:40,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-22 23:10:40,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:10:41,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:10:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:10:41,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285337067] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:10:41,329 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:10:41,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18 [2021-11-22 23:10:41,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418134374] [2021-11-22 23:10:41,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:10:41,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 23:10:41,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:41,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 23:10:41,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2021-11-22 23:10:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:41,330 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:41,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.611111111111111) internal successors, (83), 19 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:41,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:41,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:41,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:41,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:41,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:41,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-22 23:10:41,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-11-22 23:10:41,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-11-22 23:10:41,912 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2036864632, now seen corresponding path program 1 times [2021-11-22 23:10:41,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:41,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727557298] [2021-11-22 23:10:41,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:41,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:10:42,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:42,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727557298] [2021-11-22 23:10:42,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727557298] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:42,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665741343] [2021-11-22 23:10:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:42,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:42,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:10:42,027 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:10:42,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-22 23:10:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:42,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-22 23:10:42,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:10:42,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:10:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:10:42,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665741343] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:10:42,634 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:10:42,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2021-11-22 23:10:42,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216081285] [2021-11-22 23:10:42,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:10:42,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:10:42,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:42,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:10:42,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:10:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:42,635 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:42,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.0) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:42,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:42,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:42,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-22 23:10:42,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:10:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:10:43,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-22 23:10:43,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-11-22 23:10:43,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:43,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:43,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1960519635, now seen corresponding path program 1 times [2021-11-22 23:10:43,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:43,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589968323] [2021-11-22 23:10:43,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:43,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:10:43,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:43,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589968323] [2021-11-22 23:10:43,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589968323] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:43,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876185513] [2021-11-22 23:10:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:43,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:43,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:10:43,649 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:10:43,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-11-22 23:10:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:43,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:10:43,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:10:44,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:10:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 23:10:44,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876185513] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:10:44,505 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:10:44,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2021-11-22 23:10:44,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412998423] [2021-11-22 23:10:44,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:10:44,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-22 23:10:44,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-22 23:10:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2021-11-22 23:10:44,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:44,507 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:44,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.538461538461538) internal successors, (144), 27 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:44,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:44,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:44,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-22 23:10:44,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:10:44,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:10:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-22 23:10:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:10:46,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-11-22 23:10:46,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable80 [2021-11-22 23:10:46,817 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:46,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:46,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1684856613, now seen corresponding path program 1 times [2021-11-22 23:10:46,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:46,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87765884] [2021-11-22 23:10:46,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:46,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-22 23:10:46,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:46,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87765884] [2021-11-22 23:10:46,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87765884] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:46,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108446824] [2021-11-22 23:10:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:46,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:46,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:10:46,965 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:10:46,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-22 23:10:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:47,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:10:47,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-22 23:10:47,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:10:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-22 23:10:47,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108446824] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:10:47,799 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:10:47,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 27 [2021-11-22 23:10:47,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181380449] [2021-11-22 23:10:47,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:10:47,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-22 23:10:47,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:47,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-22 23:10:47,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2021-11-22 23:10:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:47,800 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:47,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.555555555555555) internal successors, (123), 28 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:47,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:47,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:47,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:10:47,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-22 23:10:47,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-22 23:10:47,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:10:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-22 23:10:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:10:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:54,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-11-22 23:10:54,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:54,234 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:10:54,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:10:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1088168932, now seen corresponding path program 1 times [2021-11-22 23:10:54,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:10:54,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639327428] [2021-11-22 23:10:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:54,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:10:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:10:54,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:10:54,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639327428] [2021-11-22 23:10:54,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639327428] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:54,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984761808] [2021-11-22 23:10:54,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:10:54,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:10:54,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:10:54,321 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:10:54,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-22 23:10:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:10:54,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:10:54,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:10:54,507 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 14 proven. 33 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-22 23:10:54,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:10:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:10:54,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984761808] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:10:54,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:10:54,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 6] total 10 [2021-11-22 23:10:54,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030893217] [2021-11-22 23:10:54,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:10:54,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:10:54,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:10:54,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:10:54,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:10:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:10:54,596 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:10:54,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:10:54,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:10:54,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:10:54,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-22 23:10:54,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-22 23:10:54,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:10:54,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:10:54,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:11:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:11:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-11-22 23:11:17,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:17,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-11-22 23:11:17,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:17,929 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:17,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:17,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1809558798, now seen corresponding path program 1 times [2021-11-22 23:11:17,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:17,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040558276] [2021-11-22 23:11:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:17,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:18,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:18,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040558276] [2021-11-22 23:11:18,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040558276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:11:18,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443457885] [2021-11-22 23:11:18,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:18,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:18,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:11:18,006 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:11:18,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-11-22 23:11:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:18,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 23:11:18,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:18,242 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:18,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:11:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:18,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443457885] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:11:18,454 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:11:18,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 14 [2021-11-22 23:11:18,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166764911] [2021-11-22 23:11:18,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:11:18,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 23:11:18,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 23:11:18,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-22 23:11:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:18,456 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:18,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:18,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:11:18,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-11-22 23:11:18,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:18,806 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:18,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash 140684024, now seen corresponding path program 2 times [2021-11-22 23:11:18,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:18,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920823133] [2021-11-22 23:11:18,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:18,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:18,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:18,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920823133] [2021-11-22 23:11:18,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920823133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:11:18,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214574984] [2021-11-22 23:11:18,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:11:18,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:18,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:11:18,896 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:11:18,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-22 23:11:18,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:11:18,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:11:18,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-22 23:11:18,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:19,224 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:19,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:11:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:19,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214574984] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:11:19,506 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:11:19,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2021-11-22 23:11:19,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369891334] [2021-11-22 23:11:19,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:11:19,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-22 23:11:19,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:19,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-22 23:11:19,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-11-22 23:11:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:19,507 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:19,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.388888888888889) internal successors, (133), 19 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:11:19,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:11:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:11:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-11-22 23:11:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 23:11:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 23:11:19,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-11-22 23:11:20,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:20,068 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:20,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:20,069 INFO L85 PathProgramCache]: Analyzing trace with hash 789959597, now seen corresponding path program 2 times [2021-11-22 23:11:20,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:20,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456623739] [2021-11-22 23:11:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:20,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:20,316 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:20,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:20,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456623739] [2021-11-22 23:11:20,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456623739] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:11:20,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135591154] [2021-11-22 23:11:20,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:11:20,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:20,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:11:20,317 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:11:20,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-11-22 23:11:20,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:11:20,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:11:20,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:11:20,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:20,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:11:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:11:21,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135591154] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:11:21,105 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:11:21,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 22 [2021-11-22 23:11:21,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574947277] [2021-11-22 23:11:21,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:11:21,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-22 23:11:21,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:21,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-22 23:11:21,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:11:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:21,106 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:21,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.590909090909091) internal successors, (167), 23 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-22 23:11:21,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:11:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:33,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-11-22 23:11:33,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:33,528 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:33,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1681018357, now seen corresponding path program 1 times [2021-11-22 23:11:33,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:33,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288586995] [2021-11-22 23:11:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:33,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:33,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:33,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288586995] [2021-11-22 23:11:33,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288586995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:11:33,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:11:33,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 23:11:33,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28115393] [2021-11-22 23:11:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:11:33,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 23:11:33,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:33,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 23:11:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:11:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:33,804 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:33,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:33,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:33,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-11-22 23:11:33,938 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:33,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:33,938 INFO L85 PathProgramCache]: Analyzing trace with hash 642617064, now seen corresponding path program 1 times [2021-11-22 23:11:33,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:33,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862538257] [2021-11-22 23:11:33,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:33,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:34,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:34,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862538257] [2021-11-22 23:11:34,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862538257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:11:34,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:11:34,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 23:11:34,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135521143] [2021-11-22 23:11:34,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:11:34,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 23:11:34,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 23:11:34,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:11:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:34,043 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:34,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:34,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:11:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:11:34,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-11-22 23:11:34,232 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash -237623163, now seen corresponding path program 3 times [2021-11-22 23:11:34,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:34,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428946107] [2021-11-22 23:11:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:34,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:34,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:34,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428946107] [2021-11-22 23:11:34,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428946107] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:11:34,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069771555] [2021-11-22 23:11:34,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:11:34,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:34,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:11:34,366 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:11:34,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-11-22 23:11:34,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-22 23:11:34,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:11:34,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:11:34,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:34,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:11:35,123 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:35,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069771555] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:11:35,123 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:11:35,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 28 [2021-11-22 23:11:35,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058861256] [2021-11-22 23:11:35,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:11:35,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-22 23:11:35,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:35,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-22 23:11:35,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-11-22 23:11:35,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:35,125 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:35,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:35,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-22 23:11:35,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:35,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:35,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:35,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:11:35,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-22 23:11:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:11:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:11:36,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2021-11-22 23:11:36,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-11-22 23:11:36,844 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:36,860 INFO L85 PathProgramCache]: Analyzing trace with hash -853885122, now seen corresponding path program 1 times [2021-11-22 23:11:36,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:36,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027700303] [2021-11-22 23:11:36,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:36,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:36,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:36,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027700303] [2021-11-22 23:11:36,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027700303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:11:36,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144343942] [2021-11-22 23:11:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:36,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:36,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:11:36,993 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:11:36,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-11-22 23:11:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:37,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:11:37,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:37,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:11:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:11:37,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144343942] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 23:11:37,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 23:11:37,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 9] total 17 [2021-11-22 23:11:37,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187664635] [2021-11-22 23:11:37,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:11:37,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:11:37,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:37,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:11:37,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-22 23:11:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:37,414 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:37,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-22 23:11:37,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:11:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:11:37,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-11-22 23:11:38,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:38,021 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:38,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:38,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1426029055, now seen corresponding path program 1 times [2021-11-22 23:11:38,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:38,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531726194] [2021-11-22 23:11:38,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:38,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:38,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:38,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531726194] [2021-11-22 23:11:38,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531726194] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:11:38,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155055634] [2021-11-22 23:11:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:38,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:38,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:11:38,150 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:11:38,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-11-22 23:11:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:38,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:11:38,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:11:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:38,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:11:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-22 23:11:38,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155055634] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:11:38,943 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:11:38,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 28 [2021-11-22 23:11:38,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386937924] [2021-11-22 23:11:38,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:11:38,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-22 23:11:38,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:38,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-22 23:11:38,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-11-22 23:11:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:38,945 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:38,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.892857142857143) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-22 23:11:38,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-22 23:11:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:11:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-22 23:11:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:11:38,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:11:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:11:59,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:11:59,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:11:59,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-11-22 23:11:59,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:11:59,694 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:59,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:59,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2016605669, now seen corresponding path program 1 times [2021-11-22 23:11:59,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:59,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607427379] [2021-11-22 23:11:59,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:59,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:11:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:11:59,795 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:11:59,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:11:59,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607427379] [2021-11-22 23:11:59,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607427379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:11:59,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:11:59,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 23:11:59,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233851160] [2021-11-22 23:11:59,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:11:59,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 23:11:59,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:11:59,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 23:11:59,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-22 23:11:59,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:59,797 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:11:59,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:11:59,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:11:59,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:11:59,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:11:59,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:11:59,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:11:59,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:11:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:11:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:11:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:11:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:11:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:11:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:11:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:11:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:11:59,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-11-22 23:11:59,996 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:11:59,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:11:59,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1733540923, now seen corresponding path program 2 times [2021-11-22 23:11:59,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:11:59,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024589577] [2021-11-22 23:11:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:11:59,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:12:00,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:12:00,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024589577] [2021-11-22 23:12:00,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024589577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:12:00,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:12:00,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 23:12:00,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449016434] [2021-11-22 23:12:00,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:12:00,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 23:12:00,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:12:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 23:12:00,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:12:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:12:00,168 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:12:00,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:12:00,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:12:00,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:12:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:12:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:12:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:12:00,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:12:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:12:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:12:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:12:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-22 23:12:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:12:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:12:00,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-11-22 23:12:00,661 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:12:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:12:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash -981118273, now seen corresponding path program 1 times [2021-11-22 23:12:00,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:12:00,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474282741] [2021-11-22 23:12:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:12:00,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-22 23:12:00,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:12:00,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474282741] [2021-11-22 23:12:00,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474282741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:12:00,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:12:00,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 23:12:00,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477906237] [2021-11-22 23:12:00,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:12:00,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 23:12:00,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:12:00,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 23:12:00,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-22 23:12:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:12:00,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:12:00,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:12:00,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-22 23:12:00,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-22 23:12:00,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:12:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:12:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-22 23:12:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-11-22 23:12:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-11-22 23:12:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:12:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-22 23:12:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:12:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:12:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 23:12:25,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 23:12:25,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-11-22 23:12:25,340 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:12:25,340 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread2of4ForFork0 was SAFE (4/5) [2021-11-22 23:12:25,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:12:25,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:12:25,355 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:12:25,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (74)] Waiting until timeout for monitored process [2021-11-22 23:12:25,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-22 23:12:25,357 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:12:25,357 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:12:25,382 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:12:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:12:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash 532254030, now seen corresponding path program 1 times [2021-11-22 23:12:25,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:12:25,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768307655] [2021-11-22 23:12:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:12:25,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:12:25,387 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:12:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:12:25,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 23:12:25,398 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 23:12:25,399 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-22 23:12:25,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-11-22 23:12:25,400 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-22 23:12:25,400 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (5/5) [2021-11-22 23:12:25,400 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-22 23:12:25,400 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-22 23:12:25,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,774 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,775 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,776 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,777 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,778 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,779 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,780 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,780 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,780 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,780 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,780 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,782 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,782 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,782 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,782 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,782 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,800 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,800 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,800 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,800 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,800 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,800 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,801 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,802 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,805 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,805 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,805 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,805 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,805 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,806 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,807 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,807 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,807 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,807 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,808 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,809 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,810 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,810 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,810 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,810 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,810 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,811 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,811 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,811 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:12:25,811 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 23:12:25,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:12:25,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:12:25,821 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:12:25,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dfa1b0-e9d5-43e9-8f96-bc78d32b0ff4/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (75)] Waiting until timeout for monitored process [2021-11-22 23:12:25,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of5ForFork0 ======== [2021-11-22 23:12:25,849 INFO L339 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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 23:12:25,849 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:12:29,462 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:12:29,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:12:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1644288276, now seen corresponding path program 1 times [2021-11-22 23:12:29,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:12:29,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409260733] [2021-11-22 23:12:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:12:29,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:12:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:12:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:12:29,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:12:29,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409260733] [2021-11-22 23:12:29,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409260733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:12:29,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:12:29,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:12:29,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560254470] [2021-11-22 23:12:29,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:12:29,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:12:29,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:12:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:12:29,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:12:29,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:12:29,482 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:12:29,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:12:29,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.