./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:30:10,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:30:10,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:30:10,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:30:10,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:30:10,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:30:10,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:30:10,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:30:10,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:30:10,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:30:10,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:30:10,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:30:10,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:30:10,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:30:10,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:30:10,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:30:10,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:30:10,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:30:10,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:30:10,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:30:10,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:30:10,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:30:10,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:30:10,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:30:10,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:30:10,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:30:10,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:30:10,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:30:10,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:30:10,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:30:10,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:30:10,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:30:10,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:30:10,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:30:10,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:30:10,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:30:10,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:30:10,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:30:10,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:30:10,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:30:10,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:30:10,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:30:10,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:30:10,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:30:10,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:30:10,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:30:10,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:30:10,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:30:10,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:30:10,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:30:10,435 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:30:10,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:30:10,436 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:30:10,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:30:10,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:30:10,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:30:10,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:30:10,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:30:10,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:30:10,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:30:10,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:30:10,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:30:10,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:30:10,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:30:10,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:30:10,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:30:10,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:30:10,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:30:10,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:30:10,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:30:10,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:30:10,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:30:10,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:30:10,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:30:10,444 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:30:10,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:30:10,445 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c [2022-11-23 03:30:10,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:30:10,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:30:10,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:30:10,807 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:30:10,808 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:30:10,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2022-11-23 03:30:14,035 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:30:14,470 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:30:14,471 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2022-11-23 03:30:14,492 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/data/c425d5d34/8df3d9a974724a04a645cba3ec4925fe/FLAG01f1a5d2f [2022-11-23 03:30:14,506 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/data/c425d5d34/8df3d9a974724a04a645cba3ec4925fe [2022-11-23 03:30:14,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:30:14,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:30:14,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:30:14,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:30:14,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:30:14,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:14" (1/1) ... [2022-11-23 03:30:14,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3278c0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:14, skipping insertion in model container [2022-11-23 03:30:14,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:14" (1/1) ... [2022-11-23 03:30:14,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:30:14,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:30:15,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2022-11-23 03:30:15,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:30:15,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:30:15,337 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2022-11-23 03:30:15,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:30:15,370 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:30:15,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15 WrapperNode [2022-11-23 03:30:15,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:30:15,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:30:15,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:30:15,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:30:15,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,509 INFO L138 Inliner]: procedures = 89, calls = 329, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 1003 [2022-11-23 03:30:15,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:30:15,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:30:15,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:30:15,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:30:15,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:30:15,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:30:15,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:30:15,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:30:15,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (1/1) ... [2022-11-23 03:30:15,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:30:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:30:15,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:30:15,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-11-23 03:30:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-11-23 03:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-11-23 03:30:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-11-23 03:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-11-23 03:30:15,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-11-23 03:30:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-11-23 03:30:15,769 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-11-23 03:30:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-11-23 03:30:15,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-11-23 03:30:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-11-23 03:30:15,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-11-23 03:30:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 03:30:15,771 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 03:30:15,771 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 03:30:15,771 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 03:30:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-11-23 03:30:15,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-11-23 03:30:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-11-23 03:30:15,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-11-23 03:30:15,772 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-11-23 03:30:15,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-11-23 03:30:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-11-23 03:30:15,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-11-23 03:30:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-11-23 03:30:15,773 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-11-23 03:30:15,773 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-11-23 03:30:15,774 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-11-23 03:30:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-11-23 03:30:15,775 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-11-23 03:30:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-11-23 03:30:15,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-11-23 03:30:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-11-23 03:30:15,776 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-11-23 03:30:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2022-11-23 03:30:15,777 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2022-11-23 03:30:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:30:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-11-23 03:30:15,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-11-23 03:30:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-11-23 03:30:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-11-23 03:30:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-11-23 03:30:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-11-23 03:30:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:30:15,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:30:15,779 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-11-23 03:30:15,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-11-23 03:30:16,013 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:30:16,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:30:17,381 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:30:17,410 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:30:17,411 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:30:17,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:17 BoogieIcfgContainer [2022-11-23 03:30:17,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:30:17,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:30:17,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:30:17,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:30:17,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:30:14" (1/3) ... [2022-11-23 03:30:17,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e79ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:17, skipping insertion in model container [2022-11-23 03:30:17,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:15" (2/3) ... [2022-11-23 03:30:17,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e79ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:17, skipping insertion in model container [2022-11-23 03:30:17,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:17" (3/3) ... [2022-11-23 03:30:17,439 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2022-11-23 03:30:17,464 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:30:17,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:30:17,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:30:17,560 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b7f046d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:30:17,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 03:30:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 402 states have (on average 1.681592039800995) internal successors, (676), 418 states have internal predecessors, (676), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2022-11-23 03:30:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-23 03:30:17,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:17,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:17,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:17,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1965651267, now seen corresponding path program 1 times [2022-11-23 03:30:17,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:17,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082457830] [2022-11-23 03:30:17,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:17,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-23 03:30:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:30:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:30:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-23 03:30:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:30:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:30:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:18,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:18,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082457830] [2022-11-23 03:30:18,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082457830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:18,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:18,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:30:18,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020560514] [2022-11-23 03:30:18,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:18,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:30:18,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:18,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:30:18,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:30:18,751 INFO L87 Difference]: Start difference. First operand has 517 states, 402 states have (on average 1.681592039800995) internal successors, (676), 418 states have internal predecessors, (676), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:24,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:24,783 INFO L93 Difference]: Finished difference Result 1231 states and 2072 transitions. [2022-11-23 03:30:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:30:24,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2022-11-23 03:30:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:24,819 INFO L225 Difference]: With dead ends: 1231 [2022-11-23 03:30:24,819 INFO L226 Difference]: Without dead ends: 710 [2022-11-23 03:30:24,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:30:24,834 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1282 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:24,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1309 Invalid, 2790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [404 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 03:30:24,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-23 03:30:25,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-23 03:30:25,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.670854271356784) internal successors, (665), 413 states have internal predecessors, (665), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-23 03:30:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 846 transitions. [2022-11-23 03:30:25,150 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 846 transitions. Word has length 101 [2022-11-23 03:30:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:25,151 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 846 transitions. [2022-11-23 03:30:25,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 846 transitions. [2022-11-23 03:30:25,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-23 03:30:25,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:25,162 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:25,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:30:25,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:25,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1219828463, now seen corresponding path program 1 times [2022-11-23 03:30:25,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:25,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696526588] [2022-11-23 03:30:25,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:25,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-23 03:30:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-23 03:30:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-23 03:30:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-23 03:30:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:30:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:30:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-23 03:30:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:25,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:25,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696526588] [2022-11-23 03:30:25,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696526588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:25,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:25,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:30:25,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354262948] [2022-11-23 03:30:25,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:25,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:30:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:25,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:30:25,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:30:25,620 INFO L87 Difference]: Start difference. First operand 512 states and 846 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:30,652 INFO L93 Difference]: Finished difference Result 1205 states and 1999 transitions. [2022-11-23 03:30:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:30:30,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2022-11-23 03:30:30,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:30,659 INFO L225 Difference]: With dead ends: 1205 [2022-11-23 03:30:30,660 INFO L226 Difference]: Without dead ends: 710 [2022-11-23 03:30:30,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:30:30,664 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1289 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:30,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 1142 Invalid, 2780 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [403 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 03:30:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-23 03:30:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-23 03:30:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6683417085427135) internal successors, (664), 413 states have internal predecessors, (664), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-23 03:30:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 845 transitions. [2022-11-23 03:30:30,803 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 845 transitions. Word has length 102 [2022-11-23 03:30:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:30,803 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 845 transitions. [2022-11-23 03:30:30,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:30,804 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 845 transitions. [2022-11-23 03:30:30,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-23 03:30:30,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:30,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:30,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:30:30,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:30,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1726293121, now seen corresponding path program 1 times [2022-11-23 03:30:30,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:30,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12552439] [2022-11-23 03:30:30,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:30,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:30:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-23 03:30:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-23 03:30:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-23 03:30:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-23 03:30:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-23 03:30:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:30:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:31,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12552439] [2022-11-23 03:30:31,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12552439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:31,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:31,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:30:31,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481205321] [2022-11-23 03:30:31,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:31,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:30:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:30:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:30:31,141 INFO L87 Difference]: Start difference. First operand 512 states and 845 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:35,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:35,806 INFO L93 Difference]: Finished difference Result 1205 states and 1998 transitions. [2022-11-23 03:30:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:30:35,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-11-23 03:30:35,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:35,812 INFO L225 Difference]: With dead ends: 1205 [2022-11-23 03:30:35,812 INFO L226 Difference]: Without dead ends: 710 [2022-11-23 03:30:35,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:30:35,816 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1265 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:35,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1221 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 03:30:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-23 03:30:35,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-23 03:30:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6658291457286432) internal successors, (663), 413 states have internal predecessors, (663), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-23 03:30:35,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 844 transitions. [2022-11-23 03:30:35,993 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 844 transitions. Word has length 103 [2022-11-23 03:30:35,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:35,994 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 844 transitions. [2022-11-23 03:30:35,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:35,994 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 844 transitions. [2022-11-23 03:30:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-23 03:30:35,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:35,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:35,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:30:35,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash -787669171, now seen corresponding path program 1 times [2022-11-23 03:30:35,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:35,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369028499] [2022-11-23 03:30:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-23 03:30:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:30:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-23 03:30:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-23 03:30:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-23 03:30:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-23 03:30:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-23 03:30:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:36,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:36,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369028499] [2022-11-23 03:30:36,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369028499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:36,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:36,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:30:36,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404417025] [2022-11-23 03:30:36,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:36,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:30:36,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:36,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:30:36,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:30:36,360 INFO L87 Difference]: Start difference. First operand 512 states and 844 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:41,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:41,820 INFO L93 Difference]: Finished difference Result 1205 states and 1997 transitions. [2022-11-23 03:30:41,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:30:41,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2022-11-23 03:30:41,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:41,827 INFO L225 Difference]: With dead ends: 1205 [2022-11-23 03:30:41,827 INFO L226 Difference]: Without dead ends: 710 [2022-11-23 03:30:41,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:30:41,831 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1267 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:41,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1194 Invalid, 2784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [400 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 03:30:41,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-23 03:30:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-23 03:30:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6633165829145728) internal successors, (662), 413 states have internal predecessors, (662), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-23 03:30:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 843 transitions. [2022-11-23 03:30:41,978 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 843 transitions. Word has length 104 [2022-11-23 03:30:41,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:41,979 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 843 transitions. [2022-11-23 03:30:41,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:41,980 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 843 transitions. [2022-11-23 03:30:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-23 03:30:41,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:41,984 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:41,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:30:41,985 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:41,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1999028667, now seen corresponding path program 1 times [2022-11-23 03:30:41,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:41,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703414837] [2022-11-23 03:30:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:41,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-23 03:30:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 03:30:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-23 03:30:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 03:30:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-23 03:30:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:30:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-23 03:30:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:42,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:42,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703414837] [2022-11-23 03:30:42,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703414837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:42,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:42,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:30:42,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849287194] [2022-11-23 03:30:42,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:42,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:30:42,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:42,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:30:42,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:30:42,376 INFO L87 Difference]: Start difference. First operand 512 states and 843 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:47,149 INFO L93 Difference]: Finished difference Result 1205 states and 1996 transitions. [2022-11-23 03:30:47,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:30:47,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2022-11-23 03:30:47,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:47,157 INFO L225 Difference]: With dead ends: 1205 [2022-11-23 03:30:47,157 INFO L226 Difference]: Without dead ends: 710 [2022-11-23 03:30:47,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:30:47,173 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1257 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:47,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 1218 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 03:30:47,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-23 03:30:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-23 03:30:47,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6608040201005025) internal successors, (661), 413 states have internal predecessors, (661), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-23 03:30:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 842 transitions. [2022-11-23 03:30:47,275 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 842 transitions. Word has length 105 [2022-11-23 03:30:47,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:47,275 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 842 transitions. [2022-11-23 03:30:47,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 842 transitions. [2022-11-23 03:30:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-23 03:30:47,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:47,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:47,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:30:47,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:47,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:47,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1946474889, now seen corresponding path program 1 times [2022-11-23 03:30:47,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:47,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796568043] [2022-11-23 03:30:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:47,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:30:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:30:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:30:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:30:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:30:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-23 03:30:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-23 03:30:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:47,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:47,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796568043] [2022-11-23 03:30:47,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796568043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:47,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:47,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:30:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409200437] [2022-11-23 03:30:47,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:47,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:30:47,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:30:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:30:47,695 INFO L87 Difference]: Start difference. First operand 512 states and 842 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:30:53,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:53,878 INFO L93 Difference]: Finished difference Result 1227 states and 2032 transitions. [2022-11-23 03:30:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:30:53,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2022-11-23 03:30:53,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:53,889 INFO L225 Difference]: With dead ends: 1227 [2022-11-23 03:30:53,889 INFO L226 Difference]: Without dead ends: 736 [2022-11-23 03:30:53,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:30:53,895 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1384 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 4559 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 4968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 4559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:53,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 2266 Invalid, 4968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [409 Valid, 4559 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 03:30:53,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-11-23 03:30:54,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 525. [2022-11-23 03:30:54,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 408 states have (on average 1.6568627450980393) internal successors, (676), 425 states have internal predecessors, (676), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2022-11-23 03:30:54,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 862 transitions. [2022-11-23 03:30:54,061 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 862 transitions. Word has length 106 [2022-11-23 03:30:54,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:54,061 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 862 transitions. [2022-11-23 03:30:54,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:30:54,061 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 862 transitions. [2022-11-23 03:30:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-23 03:30:54,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:54,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:54,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:30:54,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1409960792, now seen corresponding path program 1 times [2022-11-23 03:30:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:54,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558257547] [2022-11-23 03:30:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:54,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:30:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-23 03:30:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:30:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:30:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:30:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-23 03:30:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-23 03:30:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:54,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:54,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558257547] [2022-11-23 03:30:54,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558257547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:54,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:54,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:30:54,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078693801] [2022-11-23 03:30:54,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:54,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:30:54,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:54,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:30:54,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:30:54,401 INFO L87 Difference]: Start difference. First operand 525 states and 862 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:59,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:59,020 INFO L93 Difference]: Finished difference Result 1270 states and 2105 transitions. [2022-11-23 03:30:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:30:59,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2022-11-23 03:30:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:59,026 INFO L225 Difference]: With dead ends: 1270 [2022-11-23 03:30:59,026 INFO L226 Difference]: Without dead ends: 770 [2022-11-23 03:30:59,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:30:59,030 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1388 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 2719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:59,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 1178 Invalid, 2719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 03:30:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-11-23 03:30:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 545. [2022-11-23 03:30:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 427 states have (on average 1.6510538641686183) internal successors, (705), 444 states have internal predecessors, (705), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:30:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 890 transitions. [2022-11-23 03:30:59,147 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 890 transitions. Word has length 106 [2022-11-23 03:30:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:59,148 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 890 transitions. [2022-11-23 03:30:59,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:30:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 890 transitions. [2022-11-23 03:30:59,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-23 03:30:59,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:59,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:59,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:30:59,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:30:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash 416871043, now seen corresponding path program 1 times [2022-11-23 03:30:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:59,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247031603] [2022-11-23 03:30:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:30:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:30:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-23 03:30:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-23 03:30:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-23 03:30:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-23 03:30:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-23 03:30:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:30:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-23 03:30:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:30:59,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:30:59,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247031603] [2022-11-23 03:30:59,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247031603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:59,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:59,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:30:59,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844245281] [2022-11-23 03:30:59,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:59,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:30:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:30:59,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:30:59,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:30:59,472 INFO L87 Difference]: Start difference. First operand 545 states and 890 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:04,047 INFO L93 Difference]: Finished difference Result 1245 states and 2040 transitions. [2022-11-23 03:31:04,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:31:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2022-11-23 03:31:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:04,054 INFO L225 Difference]: With dead ends: 1245 [2022-11-23 03:31:04,054 INFO L226 Difference]: Without dead ends: 761 [2022-11-23 03:31:04,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:31:04,059 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1334 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:04,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 1249 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 03:31:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-23 03:31:04,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 545. [2022-11-23 03:31:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 427 states have (on average 1.639344262295082) internal successors, (700), 444 states have internal predecessors, (700), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:31:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 885 transitions. [2022-11-23 03:31:04,211 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 885 transitions. Word has length 107 [2022-11-23 03:31:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:04,214 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 885 transitions. [2022-11-23 03:31:04,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 885 transitions. [2022-11-23 03:31:04,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-23 03:31:04,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:04,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:04,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:31:04,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1916227379, now seen corresponding path program 1 times [2022-11-23 03:31:04,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:04,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810457175] [2022-11-23 03:31:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:04,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-23 03:31:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-23 03:31:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:31:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 03:31:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-23 03:31:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 03:31:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:04,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:04,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810457175] [2022-11-23 03:31:04,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810457175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:04,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:04,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:31:04,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033013064] [2022-11-23 03:31:04,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:04,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:31:04,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:04,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:31:04,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:31:04,575 INFO L87 Difference]: Start difference. First operand 545 states and 885 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:09,332 INFO L93 Difference]: Finished difference Result 1245 states and 2035 transitions. [2022-11-23 03:31:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:31:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2022-11-23 03:31:09,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:09,337 INFO L225 Difference]: With dead ends: 1245 [2022-11-23 03:31:09,337 INFO L226 Difference]: Without dead ends: 761 [2022-11-23 03:31:09,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:31:09,341 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 1331 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:09,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1222 Invalid, 2694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 03:31:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-23 03:31:09,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 545. [2022-11-23 03:31:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 427 states have (on average 1.6276346604215457) internal successors, (695), 444 states have internal predecessors, (695), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:31:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 880 transitions. [2022-11-23 03:31:09,456 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 880 transitions. Word has length 108 [2022-11-23 03:31:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:09,456 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 880 transitions. [2022-11-23 03:31:09,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 880 transitions. [2022-11-23 03:31:09,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-23 03:31:09,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:09,460 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:09,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:31:09,461 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:09,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1956894120, now seen corresponding path program 1 times [2022-11-23 03:31:09,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:09,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447427396] [2022-11-23 03:31:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:09,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-23 03:31:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-23 03:31:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-23 03:31:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:31:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-23 03:31:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:31:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:09,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:09,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447427396] [2022-11-23 03:31:09,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447427396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:09,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:09,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:31:09,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285910375] [2022-11-23 03:31:09,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:09,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:31:09,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:09,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:31:09,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:31:09,820 INFO L87 Difference]: Start difference. First operand 545 states and 880 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:16,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:16,138 INFO L93 Difference]: Finished difference Result 1249 states and 2031 transitions. [2022-11-23 03:31:16,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:31:16,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 109 [2022-11-23 03:31:16,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:16,146 INFO L225 Difference]: With dead ends: 1249 [2022-11-23 03:31:16,146 INFO L226 Difference]: Without dead ends: 780 [2022-11-23 03:31:16,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:31:16,150 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1334 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 4535 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 4945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 4535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:16,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 2171 Invalid, 4945 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 4535 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 03:31:16,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-11-23 03:31:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 547. [2022-11-23 03:31:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6223776223776223) internal successors, (696), 446 states have internal predecessors, (696), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:31:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 881 transitions. [2022-11-23 03:31:16,313 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 881 transitions. Word has length 109 [2022-11-23 03:31:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:16,313 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 881 transitions. [2022-11-23 03:31:16,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:16,314 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 881 transitions. [2022-11-23 03:31:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-23 03:31:16,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:16,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:16,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:31:16,318 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:16,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:16,319 INFO L85 PathProgramCache]: Analyzing trace with hash -63177592, now seen corresponding path program 1 times [2022-11-23 03:31:16,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:16,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848822743] [2022-11-23 03:31:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:16,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-23 03:31:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-23 03:31:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-23 03:31:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:31:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-23 03:31:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:31:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:16,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:16,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848822743] [2022-11-23 03:31:16,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848822743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:16,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:16,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:31:16,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833332683] [2022-11-23 03:31:16,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:16,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:31:16,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:16,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:31:16,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:31:16,631 INFO L87 Difference]: Start difference. First operand 547 states and 881 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:21,462 INFO L93 Difference]: Finished difference Result 1249 states and 2030 transitions. [2022-11-23 03:31:21,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:31:21,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-11-23 03:31:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:21,469 INFO L225 Difference]: With dead ends: 1249 [2022-11-23 03:31:21,469 INFO L226 Difference]: Without dead ends: 763 [2022-11-23 03:31:21,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:31:21,473 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1315 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:21,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1233 Invalid, 2673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 03:31:21,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2022-11-23 03:31:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 547. [2022-11-23 03:31:21,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6107226107226107) internal successors, (691), 446 states have internal predecessors, (691), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:31:21,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 876 transitions. [2022-11-23 03:31:21,629 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 876 transitions. Word has length 109 [2022-11-23 03:31:21,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:21,630 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 876 transitions. [2022-11-23 03:31:21,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:21,630 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 876 transitions. [2022-11-23 03:31:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-23 03:31:21,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:21,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:21,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 03:31:21,635 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:21,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash 25192784, now seen corresponding path program 1 times [2022-11-23 03:31:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:21,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936597456] [2022-11-23 03:31:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:21,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:21,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:31:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:31:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-23 03:31:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:31:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:31:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:31:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:22,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:22,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936597456] [2022-11-23 03:31:22,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936597456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:22,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:22,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:31:22,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195540910] [2022-11-23 03:31:22,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:22,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:31:22,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:22,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:31:22,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:31:22,062 INFO L87 Difference]: Start difference. First operand 547 states and 876 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:28,909 INFO L93 Difference]: Finished difference Result 1274 states and 2058 transitions. [2022-11-23 03:31:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:31:28,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2022-11-23 03:31:28,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:28,921 INFO L225 Difference]: With dead ends: 1274 [2022-11-23 03:31:28,921 INFO L226 Difference]: Without dead ends: 800 [2022-11-23 03:31:28,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:31:28,925 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 1329 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 4418 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 4835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 4418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:28,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 2253 Invalid, 4835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [417 Valid, 4418 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 03:31:28,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-11-23 03:31:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 553. [2022-11-23 03:31:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 435 states have (on average 1.6) internal successors, (696), 452 states have internal predecessors, (696), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:31:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 881 transitions. [2022-11-23 03:31:29,126 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 881 transitions. Word has length 110 [2022-11-23 03:31:29,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:29,127 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 881 transitions. [2022-11-23 03:31:29,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:29,127 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 881 transitions. [2022-11-23 03:31:29,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-23 03:31:29,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:29,131 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:29,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 03:31:29,132 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:29,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1583519502, now seen corresponding path program 1 times [2022-11-23 03:31:29,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:29,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155671523] [2022-11-23 03:31:29,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:29,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:31:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-23 03:31:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-23 03:31:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:31:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:31:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:31:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:29,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:29,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155671523] [2022-11-23 03:31:29,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155671523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:29,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:29,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:31:29,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366676589] [2022-11-23 03:31:29,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:29,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:31:29,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:29,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:31:29,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:31:29,390 INFO L87 Difference]: Start difference. First operand 553 states and 881 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:34,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:34,208 INFO L93 Difference]: Finished difference Result 1264 states and 2036 transitions. [2022-11-23 03:31:34,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:31:34,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-11-23 03:31:34,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:34,214 INFO L225 Difference]: With dead ends: 1264 [2022-11-23 03:31:34,215 INFO L226 Difference]: Without dead ends: 772 [2022-11-23 03:31:34,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:31:34,218 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1311 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:34,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 1205 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 03:31:34,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-11-23 03:31:34,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 553. [2022-11-23 03:31:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 435 states have (on average 1.5885057471264368) internal successors, (691), 452 states have internal predecessors, (691), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:31:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 876 transitions. [2022-11-23 03:31:34,394 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 876 transitions. Word has length 110 [2022-11-23 03:31:34,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:34,394 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 876 transitions. [2022-11-23 03:31:34,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:34,395 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 876 transitions. [2022-11-23 03:31:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-23 03:31:34,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:34,399 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:34,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 03:31:34,400 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:34,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1922365613, now seen corresponding path program 1 times [2022-11-23 03:31:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:34,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869793904] [2022-11-23 03:31:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:34,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:31:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-23 03:31:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-23 03:31:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-23 03:31:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:31:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-23 03:31:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:34,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:34,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869793904] [2022-11-23 03:31:34,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869793904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:34,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:34,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:31:34,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133985826] [2022-11-23 03:31:34,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:34,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:31:34,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:34,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:31:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:31:34,805 INFO L87 Difference]: Start difference. First operand 553 states and 876 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:41,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:41,547 INFO L93 Difference]: Finished difference Result 1286 states and 2059 transitions. [2022-11-23 03:31:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:31:41,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2022-11-23 03:31:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:41,555 INFO L225 Difference]: With dead ends: 1286 [2022-11-23 03:31:41,556 INFO L226 Difference]: Without dead ends: 809 [2022-11-23 03:31:41,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:31:41,559 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1305 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 4390 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 4808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 4390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:41,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 2333 Invalid, 4808 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [418 Valid, 4390 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-23 03:31:41,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-11-23 03:31:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 561. [2022-11-23 03:31:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 443 states have (on average 1.5756207674943568) internal successors, (698), 460 states have internal predecessors, (698), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-23 03:31:41,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 883 transitions. [2022-11-23 03:31:41,693 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 883 transitions. Word has length 111 [2022-11-23 03:31:41,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:41,694 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 883 transitions. [2022-11-23 03:31:41,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 883 transitions. [2022-11-23 03:31:41,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-23 03:31:41,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:41,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:41,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 03:31:41,699 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:41,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:41,700 INFO L85 PathProgramCache]: Analyzing trace with hash -304821619, now seen corresponding path program 1 times [2022-11-23 03:31:41,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:41,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330898244] [2022-11-23 03:31:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:41,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:31:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-23 03:31:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-23 03:31:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-23 03:31:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:31:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-23 03:31:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:41,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:41,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330898244] [2022-11-23 03:31:41,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330898244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:41,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:41,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:31:41,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321048926] [2022-11-23 03:31:41,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:42,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:31:42,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:42,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:31:42,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:31:42,001 INFO L87 Difference]: Start difference. First operand 561 states and 883 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:47,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:47,128 INFO L93 Difference]: Finished difference Result 1320 states and 2093 transitions. [2022-11-23 03:31:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:31:47,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-11-23 03:31:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:47,134 INFO L225 Difference]: With dead ends: 1320 [2022-11-23 03:31:47,134 INFO L226 Difference]: Without dead ends: 756 [2022-11-23 03:31:47,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:31:47,138 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1236 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:47,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1222 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 03:31:47,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-11-23 03:31:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 542. [2022-11-23 03:31:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 427 states have (on average 1.5807962529274004) internal successors, (675), 442 states have internal predecessors, (675), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-23 03:31:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 856 transitions. [2022-11-23 03:31:47,271 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 856 transitions. Word has length 111 [2022-11-23 03:31:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:47,271 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 856 transitions. [2022-11-23 03:31:47,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 03:31:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 856 transitions. [2022-11-23 03:31:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-23 03:31:47,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:47,276 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:47,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 03:31:47,277 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:47,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2039414027, now seen corresponding path program 1 times [2022-11-23 03:31:47,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:47,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237232326] [2022-11-23 03:31:47,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:47,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:31:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-23 03:31:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-23 03:31:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-23 03:31:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-23 03:31:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-23 03:31:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:31:47,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:47,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237232326] [2022-11-23 03:31:47,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237232326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:47,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:47,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:31:47,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428019384] [2022-11-23 03:31:47,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:47,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:31:47,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:47,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:31:47,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:31:47,688 INFO L87 Difference]: Start difference. First operand 542 states and 856 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:54,246 INFO L93 Difference]: Finished difference Result 1267 states and 2018 transitions. [2022-11-23 03:31:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:31:54,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2022-11-23 03:31:54,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:54,253 INFO L225 Difference]: With dead ends: 1267 [2022-11-23 03:31:54,253 INFO L226 Difference]: Without dead ends: 789 [2022-11-23 03:31:54,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:31:54,256 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1288 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 4309 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 4719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 4309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:54,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 2241 Invalid, 4719 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 4309 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-23 03:31:54,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-23 03:31:54,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 552. [2022-11-23 03:31:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 437 states have (on average 1.5675057208237986) internal successors, (685), 452 states have internal predecessors, (685), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-23 03:31:54,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 866 transitions. [2022-11-23 03:31:54,409 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 866 transitions. Word has length 112 [2022-11-23 03:31:54,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:54,410 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 866 transitions. [2022-11-23 03:31:54,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-23 03:31:54,410 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 866 transitions. [2022-11-23 03:31:54,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-23 03:31:54,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:54,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:54,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 03:31:54,414 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1135066562, now seen corresponding path program 1 times [2022-11-23 03:31:54,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:54,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585450287] [2022-11-23 03:31:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:54,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:31:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-23 03:31:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-23 03:31:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-23 03:31:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:31:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:31:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:54,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:31:54,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:54,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585450287] [2022-11-23 03:31:54,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585450287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:31:54,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136194117] [2022-11-23 03:31:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:54,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:31:54,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:31:54,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:31:54,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:31:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:55,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:31:55,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:31:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:31:55,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:31:55,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136194117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:55,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:31:55,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-23 03:31:55,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149316015] [2022-11-23 03:31:55,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:55,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:31:55,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:55,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:31:55,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:31:55,411 INFO L87 Difference]: Start difference. First operand 552 states and 866 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:31:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:56,345 INFO L93 Difference]: Finished difference Result 1036 states and 1674 transitions. [2022-11-23 03:31:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:31:56,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-11-23 03:31:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:56,349 INFO L225 Difference]: With dead ends: 1036 [2022-11-23 03:31:56,350 INFO L226 Difference]: Without dead ends: 560 [2022-11-23 03:31:56,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:31:56,354 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 758 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:56,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2007 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:31:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-11-23 03:31:56,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2022-11-23 03:31:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 444 states have (on average 1.5698198198198199) internal successors, (697), 459 states have internal predecessors, (697), 91 states have call successors, (91), 25 states have call predecessors, (91), 24 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2022-11-23 03:31:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 879 transitions. [2022-11-23 03:31:56,555 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 879 transitions. Word has length 113 [2022-11-23 03:31:56,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:56,555 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 879 transitions. [2022-11-23 03:31:56,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:31:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 879 transitions. [2022-11-23 03:31:56,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-23 03:31:56,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:56,560 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:56,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:31:56,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 03:31:56,770 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:56,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:56,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2061669059, now seen corresponding path program 1 times [2022-11-23 03:31:56,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:56,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109006462] [2022-11-23 03:31:56,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:56,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:56,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:31:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-23 03:31:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-23 03:31:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-23 03:31:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:31:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-23 03:31:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 03:31:57,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109006462] [2022-11-23 03:31:57,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109006462] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:31:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792740030] [2022-11-23 03:31:57,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:57,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:31:57,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:31:57,106 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:31:57,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:31:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:57,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:31:57,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:31:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 03:31:57,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:31:57,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792740030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:57,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:31:57,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-23 03:31:57,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511486676] [2022-11-23 03:31:57,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:57,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:31:57,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:31:57,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:31:57,611 INFO L87 Difference]: Start difference. First operand 560 states and 879 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:31:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:58,329 INFO L93 Difference]: Finished difference Result 1052 states and 1697 transitions. [2022-11-23 03:31:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:31:58,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-11-23 03:31:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:58,334 INFO L225 Difference]: With dead ends: 1052 [2022-11-23 03:31:58,334 INFO L226 Difference]: Without dead ends: 568 [2022-11-23 03:31:58,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:31:58,339 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 771 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:58,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2007 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:31:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-11-23 03:31:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2022-11-23 03:31:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 451 states have (on average 1.5720620842572062) internal successors, (709), 466 states have internal predecessors, (709), 91 states have call successors, (91), 26 states have call predecessors, (91), 25 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2022-11-23 03:31:58,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 892 transitions. [2022-11-23 03:31:58,488 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 892 transitions. Word has length 116 [2022-11-23 03:31:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:58,488 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 892 transitions. [2022-11-23 03:31:58,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:31:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 892 transitions. [2022-11-23 03:31:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-23 03:31:58,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:58,493 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:58,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:31:58,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 03:31:58,702 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:31:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash -427684002, now seen corresponding path program 1 times [2022-11-23 03:31:58,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:31:58,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468804313] [2022-11-23 03:31:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:31:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:31:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:31:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:31:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:58,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:31:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-23 03:31:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-23 03:31:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-23 03:31:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:31:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:31:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,056 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 03:31:59,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:31:59,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468804313] [2022-11-23 03:31:59,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468804313] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:31:59,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795352457] [2022-11-23 03:31:59,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:59,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:31:59,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:31:59,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:31:59,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:31:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:31:59,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:31:59,575 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 03:31:59,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:31:59,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795352457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:59,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:31:59,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-23 03:31:59,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115607867] [2022-11-23 03:31:59,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:59,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:31:59,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:31:59,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:31:59,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:31:59,579 INFO L87 Difference]: Start difference. First operand 568 states and 892 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:32:00,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:00,367 INFO L93 Difference]: Finished difference Result 1068 states and 1720 transitions. [2022-11-23 03:32:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:00,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-23 03:32:00,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:00,373 INFO L225 Difference]: With dead ends: 1068 [2022-11-23 03:32:00,373 INFO L226 Difference]: Without dead ends: 576 [2022-11-23 03:32:00,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:00,378 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 759 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:00,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 2007 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:32:00,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-11-23 03:32:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2022-11-23 03:32:00,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 458 states have (on average 1.574235807860262) internal successors, (721), 473 states have internal predecessors, (721), 91 states have call successors, (91), 27 states have call predecessors, (91), 26 states have return successors, (93), 88 states have call predecessors, (93), 90 states have call successors, (93) [2022-11-23 03:32:00,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 905 transitions. [2022-11-23 03:32:00,591 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 905 transitions. Word has length 119 [2022-11-23 03:32:00,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:00,592 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 905 transitions. [2022-11-23 03:32:00,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:32:00,592 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 905 transitions. [2022-11-23 03:32:00,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-23 03:32:00,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:00,597 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:00,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:00,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:00,806 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:00,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:00,806 INFO L85 PathProgramCache]: Analyzing trace with hash -33723247, now seen corresponding path program 1 times [2022-11-23 03:32:00,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:00,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958240622] [2022-11-23 03:32:00,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:00,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-23 03:32:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:32:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:32:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-23 03:32:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-23 03:32:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,131 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:32:01,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:01,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958240622] [2022-11-23 03:32:01,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958240622] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:01,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124350418] [2022-11-23 03:32:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:01,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:01,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:01,134 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:01,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:32:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:01,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:32:01,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:01,641 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:32:01,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:01,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124350418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:01,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:01,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-23 03:32:01,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593242814] [2022-11-23 03:32:01,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:01,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:32:01,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:01,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:32:01,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:32:01,648 INFO L87 Difference]: Start difference. First operand 576 states and 905 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:32:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:02,398 INFO L93 Difference]: Finished difference Result 1084 states and 1743 transitions. [2022-11-23 03:32:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:02,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-11-23 03:32:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:02,403 INFO L225 Difference]: With dead ends: 1084 [2022-11-23 03:32:02,403 INFO L226 Difference]: Without dead ends: 584 [2022-11-23 03:32:02,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:02,407 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 758 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:02,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2007 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:32:02,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-11-23 03:32:02,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2022-11-23 03:32:02,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 465 states have (on average 1.5763440860215054) internal successors, (733), 480 states have internal predecessors, (733), 91 states have call successors, (91), 28 states have call predecessors, (91), 27 states have return successors, (94), 88 states have call predecessors, (94), 90 states have call successors, (94) [2022-11-23 03:32:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 918 transitions. [2022-11-23 03:32:02,583 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 918 transitions. Word has length 122 [2022-11-23 03:32:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:02,584 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 918 transitions. [2022-11-23 03:32:02,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:32:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 918 transitions. [2022-11-23 03:32:02,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-23 03:32:02,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:02,589 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:02,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:02,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:02,798 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:02,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:02,798 INFO L85 PathProgramCache]: Analyzing trace with hash -517842182, now seen corresponding path program 1 times [2022-11-23 03:32:02,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:02,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468123399] [2022-11-23 03:32:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:02,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:32:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:32:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:32:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-23 03:32:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 03:32:03,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:03,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468123399] [2022-11-23 03:32:03,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468123399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:03,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915953115] [2022-11-23 03:32:03,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:03,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:03,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:03,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:03,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:32:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:03,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:32:03,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 03:32:04,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:04,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915953115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:04,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:04,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2022-11-23 03:32:04,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705182439] [2022-11-23 03:32:04,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:04,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:32:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:04,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:32:04,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:32:04,044 INFO L87 Difference]: Start difference. First operand 584 states and 918 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:32:04,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:04,285 INFO L93 Difference]: Finished difference Result 1269 states and 2003 transitions. [2022-11-23 03:32:04,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:32:04,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2022-11-23 03:32:04,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:04,290 INFO L225 Difference]: With dead ends: 1269 [2022-11-23 03:32:04,290 INFO L226 Difference]: Without dead ends: 761 [2022-11-23 03:32:04,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:32:04,293 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 536 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:04,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1308 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-23 03:32:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 759. [2022-11-23 03:32:04,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 605 states have (on average 1.5388429752066115) internal successors, (931), 618 states have internal predecessors, (931), 113 states have call successors, (113), 42 states have call predecessors, (113), 40 states have return successors, (128), 110 states have call predecessors, (128), 111 states have call successors, (128) [2022-11-23 03:32:04,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1172 transitions. [2022-11-23 03:32:04,532 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1172 transitions. Word has length 125 [2022-11-23 03:32:04,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:04,533 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 1172 transitions. [2022-11-23 03:32:04,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 03:32:04,533 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1172 transitions. [2022-11-23 03:32:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-23 03:32:04,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:04,537 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:04,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:04,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:04,752 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:04,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:04,753 INFO L85 PathProgramCache]: Analyzing trace with hash -719666116, now seen corresponding path program 1 times [2022-11-23 03:32:04,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:04,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108565380] [2022-11-23 03:32:04,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:04,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:32:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:32:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:32:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-23 03:32:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-23 03:32:05,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:05,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108565380] [2022-11-23 03:32:05,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108565380] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:05,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165782373] [2022-11-23 03:32:05,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:05,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:05,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:05,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:05,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:32:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:05,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 03:32:05,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 03:32:05,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:05,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165782373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:05,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:05,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2022-11-23 03:32:05,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647530012] [2022-11-23 03:32:05,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:05,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:32:05,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:05,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:32:05,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:32:05,990 INFO L87 Difference]: Start difference. First operand 759 states and 1172 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-23 03:32:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:07,199 INFO L93 Difference]: Finished difference Result 2123 states and 3362 transitions. [2022-11-23 03:32:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:07,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2022-11-23 03:32:07,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:07,210 INFO L225 Difference]: With dead ends: 2123 [2022-11-23 03:32:07,210 INFO L226 Difference]: Without dead ends: 1441 [2022-11-23 03:32:07,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:32:07,216 INFO L413 NwaCegarLoop]: 914 mSDtfsCounter, 931 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 3614 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:07,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 3614 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 03:32:07,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2022-11-23 03:32:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1432. [2022-11-23 03:32:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1136 states have (on average 1.5554577464788732) internal successors, (1767), 1161 states have internal predecessors, (1767), 217 states have call successors, (217), 80 states have call predecessors, (217), 78 states have return successors, (265), 214 states have call predecessors, (265), 213 states have call successors, (265) [2022-11-23 03:32:07,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2249 transitions. [2022-11-23 03:32:07,708 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2249 transitions. Word has length 125 [2022-11-23 03:32:07,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:07,709 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2249 transitions. [2022-11-23 03:32:07,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-23 03:32:07,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2249 transitions. [2022-11-23 03:32:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-23 03:32:07,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:07,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:07,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:07,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-23 03:32:07,922 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:07,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1839604388, now seen corresponding path program 1 times [2022-11-23 03:32:07,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:07,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788626800] [2022-11-23 03:32:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:07,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:32:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:32:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-23 03:32:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-23 03:32:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-23 03:32:08,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:08,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788626800] [2022-11-23 03:32:08,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788626800] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:08,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802027080] [2022-11-23 03:32:08,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:08,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:08,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:08,683 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:08,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:32:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:09,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 03:32:09,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:09,263 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 03:32:09,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:09,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802027080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:09,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:09,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-23 03:32:09,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13699971] [2022-11-23 03:32:09,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:09,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:32:09,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:09,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:32:09,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:32:09,266 INFO L87 Difference]: Start difference. First operand 1432 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 03:32:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:10,201 INFO L93 Difference]: Finished difference Result 2805 states and 4467 transitions. [2022-11-23 03:32:10,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:32:10,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-11-23 03:32:10,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:10,210 INFO L225 Difference]: With dead ends: 2805 [2022-11-23 03:32:10,210 INFO L226 Difference]: Without dead ends: 1450 [2022-11-23 03:32:10,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:32:10,216 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 743 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:10,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 3276 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:32:10,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-11-23 03:32:10,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1442. [2022-11-23 03:32:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1142 states have (on average 1.552539404553415) internal successors, (1773), 1170 states have internal predecessors, (1773), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2267 transitions. [2022-11-23 03:32:10,620 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2267 transitions. Word has length 127 [2022-11-23 03:32:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:10,620 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2267 transitions. [2022-11-23 03:32:10,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 03:32:10,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2267 transitions. [2022-11-23 03:32:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-23 03:32:10,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:10,624 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:10,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-23 03:32:10,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-23 03:32:10,833 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:10,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:10,833 INFO L85 PathProgramCache]: Analyzing trace with hash 85788211, now seen corresponding path program 1 times [2022-11-23 03:32:10,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:10,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799554363] [2022-11-23 03:32:10,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:10,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:32:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:32:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:32:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-23 03:32:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:32:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-23 03:32:11,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:11,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799554363] [2022-11-23 03:32:11,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799554363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:11,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73602882] [2022-11-23 03:32:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:11,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:11,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:11,519 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:11,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:32:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:32:11,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 03:32:11,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:11,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73602882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:11,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:11,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-23 03:32:11,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283743637] [2022-11-23 03:32:11,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:11,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:32:11,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:11,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:32:11,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:32:11,892 INFO L87 Difference]: Start difference. First operand 1442 states and 2267 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 03:32:12,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:12,701 INFO L93 Difference]: Finished difference Result 3479 states and 5558 transitions. [2022-11-23 03:32:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:32:12,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-11-23 03:32:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:12,717 INFO L225 Difference]: With dead ends: 3479 [2022-11-23 03:32:12,717 INFO L226 Difference]: Without dead ends: 2116 [2022-11-23 03:32:12,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:32:12,731 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 755 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:12,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 2357 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:12,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-11-23 03:32:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1442. [2022-11-23 03:32:13,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1142 states have (on average 1.5516637478108581) internal successors, (1772), 1170 states have internal predecessors, (1772), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2266 transitions. [2022-11-23 03:32:13,204 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2266 transitions. Word has length 132 [2022-11-23 03:32:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:13,205 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2266 transitions. [2022-11-23 03:32:13,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 03:32:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2266 transitions. [2022-11-23 03:32:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-23 03:32:13,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:13,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:13,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:13,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-23 03:32:13,409 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:13,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:13,409 INFO L85 PathProgramCache]: Analyzing trace with hash 787388085, now seen corresponding path program 1 times [2022-11-23 03:32:13,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084815452] [2022-11-23 03:32:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:13,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:32:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:32:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:32:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-23 03:32:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:32:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-23 03:32:14,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:14,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084815452] [2022-11-23 03:32:14,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084815452] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:14,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012564490] [2022-11-23 03:32:14,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:14,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:14,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:14,071 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:14,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:32:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:32:14,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 03:32:14,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:14,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012564490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:14,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:14,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-23 03:32:14,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226187601] [2022-11-23 03:32:14,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:14,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:32:14,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:14,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:32:14,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:32:14,583 INFO L87 Difference]: Start difference. First operand 1442 states and 2266 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 03:32:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:14,976 INFO L93 Difference]: Finished difference Result 2815 states and 4488 transitions. [2022-11-23 03:32:14,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:14,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-11-23 03:32:14,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:14,986 INFO L225 Difference]: With dead ends: 2815 [2022-11-23 03:32:14,986 INFO L226 Difference]: Without dead ends: 1454 [2022-11-23 03:32:14,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:32:14,994 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 354 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:14,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 3370 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-11-23 03:32:15,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1442. [2022-11-23 03:32:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1142 states have (on average 1.5481611208406305) internal successors, (1768), 1170 states have internal predecessors, (1768), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2262 transitions. [2022-11-23 03:32:15,488 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2262 transitions. Word has length 132 [2022-11-23 03:32:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:15,489 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2262 transitions. [2022-11-23 03:32:15,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 03:32:15,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2262 transitions. [2022-11-23 03:32:15,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-23 03:32:15,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:15,493 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:15,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:15,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-23 03:32:15,700 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:15,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1914532507, now seen corresponding path program 1 times [2022-11-23 03:32:15,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:15,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487200564] [2022-11-23 03:32:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:15,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:32:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:32:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:32:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-23 03:32:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-23 03:32:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-23 03:32:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-23 03:32:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-23 03:32:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-23 03:32:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-23 03:32:16,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:16,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487200564] [2022-11-23 03:32:16,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487200564] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:16,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477452917] [2022-11-23 03:32:16,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:16,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:16,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:16,372 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:16,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:32:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:16,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:16,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-23 03:32:16,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:16,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477452917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:16,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:16,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-23 03:32:16,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062300683] [2022-11-23 03:32:16,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:16,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:16,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:16,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:16,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:32:16,726 INFO L87 Difference]: Start difference. First operand 1442 states and 2262 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:17,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:17,300 INFO L93 Difference]: Finished difference Result 2884 states and 4592 transitions. [2022-11-23 03:32:17,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:32:17,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2022-11-23 03:32:17,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:17,309 INFO L225 Difference]: With dead ends: 2884 [2022-11-23 03:32:17,309 INFO L226 Difference]: Without dead ends: 1520 [2022-11-23 03:32:17,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:32:17,316 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 213 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:17,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2208 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-11-23 03:32:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1520. [2022-11-23 03:32:17,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1218 states have (on average 1.5714285714285714) internal successors, (1914), 1246 states have internal predecessors, (1914), 219 states have call successors, (219), 83 states have call predecessors, (219), 82 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:17,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2408 transitions. [2022-11-23 03:32:17,657 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2408 transitions. Word has length 155 [2022-11-23 03:32:17,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:17,657 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2408 transitions. [2022-11-23 03:32:17,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:17,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2408 transitions. [2022-11-23 03:32:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-23 03:32:17,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:17,660 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:17,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:17,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-23 03:32:17,867 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash 961042028, now seen corresponding path program 1 times [2022-11-23 03:32:17,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:17,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425181760] [2022-11-23 03:32:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:17,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:32:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:32:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:32:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 03:32:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-23 03:32:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-23 03:32:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-23 03:32:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-23 03:32:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-23 03:32:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-23 03:32:18,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:18,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425181760] [2022-11-23 03:32:18,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425181760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:18,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872864846] [2022-11-23 03:32:18,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:18,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:18,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:18,523 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:18,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:32:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:18,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:18,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-23 03:32:18,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:18,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872864846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:18,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:18,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-23 03:32:18,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561236975] [2022-11-23 03:32:18,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:18,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:18,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:18,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:18,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:32:18,933 INFO L87 Difference]: Start difference. First operand 1520 states and 2408 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:19,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:19,642 INFO L93 Difference]: Finished difference Result 3040 states and 4882 transitions. [2022-11-23 03:32:19,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:32:19,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2022-11-23 03:32:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:19,669 INFO L225 Difference]: With dead ends: 3040 [2022-11-23 03:32:19,669 INFO L226 Difference]: Without dead ends: 1598 [2022-11-23 03:32:19,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:32:19,677 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 211 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:19,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2208 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-11-23 03:32:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1598. [2022-11-23 03:32:19,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1294 states have (on average 1.5919629057187017) internal successors, (2060), 1322 states have internal predecessors, (2060), 219 states have call successors, (219), 85 states have call predecessors, (219), 84 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2554 transitions. [2022-11-23 03:32:19,983 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2554 transitions. Word has length 160 [2022-11-23 03:32:19,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:19,983 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 2554 transitions. [2022-11-23 03:32:19,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2554 transitions. [2022-11-23 03:32:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-23 03:32:19,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:19,988 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:19,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:20,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-23 03:32:20,196 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash -272186404, now seen corresponding path program 1 times [2022-11-23 03:32:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:20,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551577490] [2022-11-23 03:32:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:32:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:32:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:32:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:32:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:32:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:32:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-23 03:32:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-23 03:32:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-23 03:32:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-23 03:32:20,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:20,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551577490] [2022-11-23 03:32:20,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551577490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:20,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295080277] [2022-11-23 03:32:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:20,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:20,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:20,855 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:20,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:32:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:21,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:21,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 03:32:21,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:21,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295080277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:21,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:21,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-23 03:32:21,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988116802] [2022-11-23 03:32:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:21,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:21,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:21,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:21,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:32:21,211 INFO L87 Difference]: Start difference. First operand 1598 states and 2554 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:21,740 INFO L93 Difference]: Finished difference Result 3196 states and 5172 transitions. [2022-11-23 03:32:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:32:21,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2022-11-23 03:32:21,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:21,749 INFO L225 Difference]: With dead ends: 3196 [2022-11-23 03:32:21,749 INFO L226 Difference]: Without dead ends: 1676 [2022-11-23 03:32:21,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:32:21,757 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 209 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:21,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2208 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-11-23 03:32:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2022-11-23 03:32:22,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1370 states have (on average 1.6102189781021898) internal successors, (2206), 1398 states have internal predecessors, (2206), 219 states have call successors, (219), 87 states have call predecessors, (219), 86 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2700 transitions. [2022-11-23 03:32:22,326 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2700 transitions. Word has length 164 [2022-11-23 03:32:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:22,326 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2700 transitions. [2022-11-23 03:32:22,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:22,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2700 transitions. [2022-11-23 03:32:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-23 03:32:22,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:22,333 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:22,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:22,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-23 03:32:22,542 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:22,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash -224721989, now seen corresponding path program 1 times [2022-11-23 03:32:22,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:22,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262811596] [2022-11-23 03:32:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:22,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:22,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:22,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:32:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:32:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:32:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:32:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-23 03:32:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-23 03:32:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-23 03:32:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-23 03:32:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-23 03:32:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-23 03:32:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:23,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262811596] [2022-11-23 03:32:23,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262811596] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:23,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547270776] [2022-11-23 03:32:23,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:23,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:23,141 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:23,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 03:32:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:23,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:23,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-23 03:32:23,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:23,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547270776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:23,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:23,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-23 03:32:23,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157844316] [2022-11-23 03:32:23,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:23,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:23,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:32:23,579 INFO L87 Difference]: Start difference. First operand 1676 states and 2700 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:24,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:24,128 INFO L93 Difference]: Finished difference Result 3352 states and 5462 transitions. [2022-11-23 03:32:24,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:32:24,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2022-11-23 03:32:24,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:24,139 INFO L225 Difference]: With dead ends: 3352 [2022-11-23 03:32:24,139 INFO L226 Difference]: Without dead ends: 1754 [2022-11-23 03:32:24,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:32:24,147 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 207 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:24,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2208 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:24,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-11-23 03:32:24,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2022-11-23 03:32:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1446 states have (on average 1.6265560165975104) internal successors, (2352), 1474 states have internal predecessors, (2352), 219 states have call successors, (219), 89 states have call predecessors, (219), 88 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:24,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2846 transitions. [2022-11-23 03:32:24,628 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2846 transitions. Word has length 167 [2022-11-23 03:32:24,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:24,629 INFO L495 AbstractCegarLoop]: Abstraction has 1754 states and 2846 transitions. [2022-11-23 03:32:24,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:24,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2846 transitions. [2022-11-23 03:32:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-23 03:32:24,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:24,635 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:24,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-23 03:32:24,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-23 03:32:24,844 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash -431239223, now seen corresponding path program 1 times [2022-11-23 03:32:24,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:24,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496251428] [2022-11-23 03:32:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:24,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:32:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-23 03:32:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:32:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-23 03:32:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-23 03:32:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:32:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-23 03:32:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-23 03:32:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-23 03:32:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-23 03:32:25,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496251428] [2022-11-23 03:32:25,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496251428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003932893] [2022-11-23 03:32:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:25,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:25,467 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:25,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 03:32:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:25,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:32:25,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-23 03:32:25,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:25,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003932893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:25,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:25,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-23 03:32:25,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681723641] [2022-11-23 03:32:25,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:25,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:25,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:25,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:25,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:32:25,888 INFO L87 Difference]: Start difference. First operand 1754 states and 2846 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:26,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:26,410 INFO L93 Difference]: Finished difference Result 3492 states and 5737 transitions. [2022-11-23 03:32:26,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:32:26,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-11-23 03:32:26,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:26,418 INFO L225 Difference]: With dead ends: 3492 [2022-11-23 03:32:26,418 INFO L226 Difference]: Without dead ends: 1816 [2022-11-23 03:32:26,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:32:26,427 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 69 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:26,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2439 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:32:26,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2022-11-23 03:32:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1762. [2022-11-23 03:32:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1454 states have (on average 1.623108665749656) internal successors, (2360), 1482 states have internal predecessors, (2360), 219 states have call successors, (219), 89 states have call predecessors, (219), 88 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-23 03:32:26,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2854 transitions. [2022-11-23 03:32:26,921 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2854 transitions. Word has length 169 [2022-11-23 03:32:26,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:26,922 INFO L495 AbstractCegarLoop]: Abstraction has 1762 states and 2854 transitions. [2022-11-23 03:32:26,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 03:32:26,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2854 transitions. [2022-11-23 03:32:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-23 03:32:26,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:26,927 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:26,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:27,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:27,136 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:27,136 INFO L85 PathProgramCache]: Analyzing trace with hash -330209017, now seen corresponding path program 1 times [2022-11-23 03:32:27,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:27,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137488332] [2022-11-23 03:32:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:27,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 03:32:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-23 03:32:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-23 03:32:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-23 03:32:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-23 03:32:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-23 03:32:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-23 03:32:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-23 03:32:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-23 03:32:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-23 03:32:27,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:27,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137488332] [2022-11-23 03:32:27,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137488332] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:27,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765910552] [2022-11-23 03:32:27,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:27,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:27,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:27,667 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:27,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-23 03:32:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:27,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 03:32:27,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-23 03:32:28,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:28,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765910552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:28,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:28,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2022-11-23 03:32:28,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767273477] [2022-11-23 03:32:28,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:28,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:32:28,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:32:28,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:32:28,382 INFO L87 Difference]: Start difference. First operand 1762 states and 2854 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-23 03:32:32,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:32,900 INFO L93 Difference]: Finished difference Result 5435 states and 9009 transitions. [2022-11-23 03:32:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:32:32,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 175 [2022-11-23 03:32:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:32,930 INFO L225 Difference]: With dead ends: 5435 [2022-11-23 03:32:32,930 INFO L226 Difference]: Without dead ends: 3379 [2022-11-23 03:32:32,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-11-23 03:32:32,944 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1842 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 4047 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 4501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 4047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:32,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 2383 Invalid, 4501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 4047 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 03:32:32,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2022-11-23 03:32:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3299. [2022-11-23 03:32:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2664 states have (on average 1.640015015015015) internal successors, (4369), 2746 states have internal predecessors, (4369), 455 states have call successors, (455), 159 states have call predecessors, (455), 179 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2022-11-23 03:32:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 5423 transitions. [2022-11-23 03:32:33,683 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 5423 transitions. Word has length 175 [2022-11-23 03:32:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:33,684 INFO L495 AbstractCegarLoop]: Abstraction has 3299 states and 5423 transitions. [2022-11-23 03:32:33,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-23 03:32:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 5423 transitions. [2022-11-23 03:32:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-23 03:32:33,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:33,695 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:33,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:33,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-23 03:32:33,904 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1355098377, now seen corresponding path program 1 times [2022-11-23 03:32:33,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:33,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164986661] [2022-11-23 03:32:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:33,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:32:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-23 03:32:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-23 03:32:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-23 03:32:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-23 03:32:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-23 03:32:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-23 03:32:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-23 03:32:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-23 03:32:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-23 03:32:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-23 03:32:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-23 03:32:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:34,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164986661] [2022-11-23 03:32:34,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164986661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:34,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:34,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:32:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347889873] [2022-11-23 03:32:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:34,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:32:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:32:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:32:34,317 INFO L87 Difference]: Start difference. First operand 3299 states and 5423 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 03:32:41,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:41,092 INFO L93 Difference]: Finished difference Result 7491 states and 12473 transitions. [2022-11-23 03:32:41,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 03:32:41,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 175 [2022-11-23 03:32:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:41,124 INFO L225 Difference]: With dead ends: 7491 [2022-11-23 03:32:41,124 INFO L226 Difference]: Without dead ends: 4206 [2022-11-23 03:32:41,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:32:41,140 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 788 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 3512 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2987 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:41,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 2987 Invalid, 3656 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [144 Valid, 3512 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 03:32:41,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2022-11-23 03:32:42,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3313. [2022-11-23 03:32:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 2678 states have (on average 1.628080657206871) internal successors, (4360), 2760 states have internal predecessors, (4360), 455 states have call successors, (455), 159 states have call predecessors, (455), 179 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2022-11-23 03:32:42,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 5414 transitions. [2022-11-23 03:32:42,135 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 5414 transitions. Word has length 175 [2022-11-23 03:32:42,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:42,135 INFO L495 AbstractCegarLoop]: Abstraction has 3313 states and 5414 transitions. [2022-11-23 03:32:42,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 03:32:42,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 5414 transitions. [2022-11-23 03:32:42,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-23 03:32:42,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:42,148 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:42,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-23 03:32:42,148 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:42,149 INFO L85 PathProgramCache]: Analyzing trace with hash -377214621, now seen corresponding path program 1 times [2022-11-23 03:32:42,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:42,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289724672] [2022-11-23 03:32:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:42,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-23 03:32:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-23 03:32:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-23 03:32:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-23 03:32:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-23 03:32:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-23 03:32:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-23 03:32:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-23 03:32:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-23 03:32:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-23 03:32:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-23 03:32:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-23 03:32:42,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:42,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289724672] [2022-11-23 03:32:42,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289724672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:42,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:42,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:32:42,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372722682] [2022-11-23 03:32:42,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:42,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 03:32:42,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:42,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 03:32:42,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:32:42,558 INFO L87 Difference]: Start difference. First operand 3313 states and 5414 transitions. Second operand has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 03:32:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:49,334 INFO L93 Difference]: Finished difference Result 7159 states and 11985 transitions. [2022-11-23 03:32:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:32:49,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 181 [2022-11-23 03:32:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:49,360 INFO L225 Difference]: With dead ends: 7159 [2022-11-23 03:32:49,361 INFO L226 Difference]: Without dead ends: 3730 [2022-11-23 03:32:49,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:32:49,376 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 1375 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:49,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 2883 Invalid, 3711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [329 Valid, 3382 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-23 03:32:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2022-11-23 03:32:50,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 2926. [2022-11-23 03:32:50,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2391 states have (on average 1.6729401923881222) internal successors, (4000), 2460 states have internal predecessors, (4000), 375 states have call successors, (375), 147 states have call predecessors, (375), 159 states have return successors, (469), 366 states have call predecessors, (469), 371 states have call successors, (469) [2022-11-23 03:32:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 4844 transitions. [2022-11-23 03:32:50,328 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 4844 transitions. Word has length 181 [2022-11-23 03:32:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:50,329 INFO L495 AbstractCegarLoop]: Abstraction has 2926 states and 4844 transitions. [2022-11-23 03:32:50,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-23 03:32:50,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 4844 transitions. [2022-11-23 03:32:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-11-23 03:32:50,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:50,354 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:50,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-23 03:32:50,354 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:32:50,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash -308121446, now seen corresponding path program 1 times [2022-11-23 03:32:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:50,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190153140] [2022-11-23 03:32:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:50,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:32:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:32:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 03:32:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-23 03:32:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:32:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:32:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-23 03:32:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 03:32:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-23 03:32:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:32:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-23 03:32:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-23 03:32:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:32:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:32:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-23 03:32:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:32:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:32:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-11-23 03:32:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:32:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-11-23 03:32:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-11-23 03:32:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-11-23 03:32:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-11-23 03:32:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-11-23 03:32:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-11-23 03:32:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-11-23 03:32:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-11-23 03:32:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-11-23 03:32:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-11-23 03:32:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:32:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2022-11-23 03:32:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 37 proven. 136 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2022-11-23 03:32:51,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:32:51,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190153140] [2022-11-23 03:32:51,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190153140] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:51,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239752710] [2022-11-23 03:32:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:51,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:32:51,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:51,851 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:32:51,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-23 03:32:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:52,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 3187 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 03:32:52,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 369 proven. 50 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2022-11-23 03:32:53,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 53 proven. 100 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2022-11-23 03:32:54,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239752710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:54,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:54,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2022-11-23 03:32:54,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546270424] [2022-11-23 03:32:54,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:54,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-23 03:32:54,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:32:54,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-23 03:32:54,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 03:32:54,556 INFO L87 Difference]: Start difference. First operand 2926 states and 4844 transitions. Second operand has 34 states, 32 states have (on average 11.75) internal successors, (376), 25 states have internal predecessors, (376), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) [2022-11-23 03:39:54,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:39:54,713 INFO L93 Difference]: Finished difference Result 35257 states and 75738 transitions. [2022-11-23 03:39:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 640 states. [2022-11-23 03:39:54,714 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 11.75) internal successors, (376), 25 states have internal predecessors, (376), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) Word has length 469 [2022-11-23 03:39:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:39:55,292 INFO L225 Difference]: With dead ends: 35257 [2022-11-23 03:39:55,292 INFO L226 Difference]: Without dead ends: 32298 [2022-11-23 03:39:55,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2026 GetRequests, 1355 SyntacticMatches, 3 SemanticMatches, 668 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210431 ImplicationChecksByTransitivity, 122.5s TimeCoverageRelationStatistics Valid=30812, Invalid=417418, Unknown=0, NotChecked=0, Total=448230 [2022-11-23 03:39:55,466 INFO L413 NwaCegarLoop]: 3300 mSDtfsCounter, 44721 mSDsluCounter, 34214 mSDsCounter, 0 mSdLazyCounter, 201526 mSolverCounterSat, 58496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 247.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44721 SdHoareTripleChecker+Valid, 37514 SdHoareTripleChecker+Invalid, 260022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.4s SdHoareTripleChecker+Time, 58496 IncrementalHoareTripleChecker+Valid, 201526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 270.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:39:55,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44721 Valid, 37514 Invalid, 260022 Unknown, 0 Unchecked, 2.4s Time], IncrementalHoareTripleChecker [58496 Valid, 201526 Invalid, 0 Unknown, 0 Unchecked, 270.1s Time] [2022-11-23 03:39:55,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32298 states. [2022-11-23 03:40:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32298 to 15290. [2022-11-23 03:40:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15290 states, 12470 states have (on average 1.6425020048115477) internal successors, (20482), 12828 states have internal predecessors, (20482), 1862 states have call successors, (1862), 822 states have call predecessors, (1862), 957 states have return successors, (2635), 1903 states have call predecessors, (2635), 1844 states have call successors, (2635) [2022-11-23 03:40:00,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15290 states to 15290 states and 24979 transitions. [2022-11-23 03:40:00,891 INFO L78 Accepts]: Start accepts. Automaton has 15290 states and 24979 transitions. Word has length 469 [2022-11-23 03:40:00,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:00,892 INFO L495 AbstractCegarLoop]: Abstraction has 15290 states and 24979 transitions. [2022-11-23 03:40:00,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 11.75) internal successors, (376), 25 states have internal predecessors, (376), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) [2022-11-23 03:40:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 15290 states and 24979 transitions. [2022-11-23 03:40:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-11-23 03:40:00,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:00,948 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 13, 13, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:00,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:01,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-23 03:40:01,158 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:01,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1852537536, now seen corresponding path program 1 times [2022-11-23 03:40:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:01,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420499425] [2022-11-23 03:40:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:01,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:40:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:01,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:40:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:40:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:40:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:40:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:40:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:40:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:40:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:40:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:40:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-23 03:40:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-23 03:40:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-23 03:40:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:40:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-23 03:40:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-23 03:40:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:40:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:40:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:40:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:40:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:40:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:40:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:40:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:40:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-11-23 03:40:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:40:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-11-23 03:40:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-11-23 03:40:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-11-23 03:40:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-11-23 03:40:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2022-11-23 03:40:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2022-11-23 03:40:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-11-23 03:40:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-11-23 03:40:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-11-23 03:40:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2022-11-23 03:40:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-11-23 03:40:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 96 proven. 166 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2022-11-23 03:40:02,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:02,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420499425] [2022-11-23 03:40:02,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420499425] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:02,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051105384] [2022-11-23 03:40:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:02,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:02,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:02,550 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:02,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-23 03:40:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:03,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:40:03,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 868 proven. 0 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2022-11-23 03:40:03,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:40:03,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051105384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:03,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:40:03,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2022-11-23 03:40:03,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917047711] [2022-11-23 03:40:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:03,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:40:03,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:40:03,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-23 03:40:03,391 INFO L87 Difference]: Start difference. First operand 15290 states and 24979 transitions. Second operand has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 5 states have internal predecessors, (221), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-23 03:40:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:40:09,205 INFO L93 Difference]: Finished difference Result 32872 states and 54144 transitions. [2022-11-23 03:40:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:40:09,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 5 states have internal predecessors, (221), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 555 [2022-11-23 03:40:09,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:40:09,299 INFO L225 Difference]: With dead ends: 32872 [2022-11-23 03:40:09,299 INFO L226 Difference]: Without dead ends: 17654 [2022-11-23 03:40:09,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 669 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:40:09,360 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 165 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:40:09,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 4118 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:40:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17654 states. [2022-11-23 03:40:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17654 to 15432. [2022-11-23 03:40:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15432 states, 12574 states have (on average 1.637187847940194) internal successors, (20586), 12948 states have internal predecessors, (20586), 1862 states have call successors, (1862), 822 states have call predecessors, (1862), 995 states have return successors, (2713), 1925 states have call predecessors, (2713), 1844 states have call successors, (2713) [2022-11-23 03:40:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15432 states to 15432 states and 25161 transitions. [2022-11-23 03:40:12,959 INFO L78 Accepts]: Start accepts. Automaton has 15432 states and 25161 transitions. Word has length 555 [2022-11-23 03:40:12,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:40:12,959 INFO L495 AbstractCegarLoop]: Abstraction has 15432 states and 25161 transitions. [2022-11-23 03:40:12,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 5 states have internal predecessors, (221), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-23 03:40:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 15432 states and 25161 transitions. [2022-11-23 03:40:13,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2022-11-23 03:40:13,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:40:13,022 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:13,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-23 03:40:13,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:13,233 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:40:13,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:13,233 INFO L85 PathProgramCache]: Analyzing trace with hash -950151620, now seen corresponding path program 1 times [2022-11-23 03:40:13,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:13,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060668980] [2022-11-23 03:40:13,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:13,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:13,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:40:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:13,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:40:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:13,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:40:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:40:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:40:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:40:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:40:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:40:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:40:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:40:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:40:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-23 03:40:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-23 03:40:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-23 03:40:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:40:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-23 03:40:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-23 03:40:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:40:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-23 03:40:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-23 03:40:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:40:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-23 03:40:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-11-23 03:40:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:40:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-11-23 03:40:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-11-23 03:40:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-11-23 03:40:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-11-23 03:40:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-11-23 03:40:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-11-23 03:40:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-11-23 03:40:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2022-11-23 03:40:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-11-23 03:40:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-11-23 03:40:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:40:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-11-23 03:40:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 67 proven. 112 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-23 03:40:14,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:14,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060668980] [2022-11-23 03:40:14,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060668980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:40:14,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821682909] [2022-11-23 03:40:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:14,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:40:14,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:40:14,451 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:40:14,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-23 03:40:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:15,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 3364 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 03:40:15,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:40:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 582 proven. 25 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-11-23 03:40:15,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:40:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 74 proven. 43 refuted. 0 times theorem prover too weak. 1187 trivial. 0 not checked. [2022-11-23 03:40:16,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821682909] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:40:16,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:40:16,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 9] total 24 [2022-11-23 03:40:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312900138] [2022-11-23 03:40:16,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:40:16,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 03:40:16,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 03:40:16,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:40:16,573 INFO L87 Difference]: Start difference. First operand 15432 states and 25161 transitions. Second operand has 24 states, 23 states have (on average 18.17391304347826) internal successors, (418), 19 states have internal predecessors, (418), 13 states have call successors, (101), 10 states have call predecessors, (101), 14 states have return successors, (98), 15 states have call predecessors, (98), 13 states have call successors, (98) [2022-11-23 03:41:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:41:44,085 INFO L93 Difference]: Finished difference Result 58683 states and 105596 transitions. [2022-11-23 03:41:44,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-11-23 03:41:44,086 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 18.17391304347826) internal successors, (418), 19 states have internal predecessors, (418), 13 states have call successors, (101), 10 states have call predecessors, (101), 14 states have return successors, (98), 15 states have call predecessors, (98), 13 states have call successors, (98) Word has length 522 [2022-11-23 03:41:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:41:44,408 INFO L225 Difference]: With dead ends: 58683 [2022-11-23 03:41:44,408 INFO L226 Difference]: Without dead ends: 42142 [2022-11-23 03:41:44,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 1198 SyntacticMatches, 6 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7249 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=3270, Invalid=15090, Unknown=0, NotChecked=0, Total=18360 [2022-11-23 03:41:44,600 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 22757 mSDsluCounter, 7088 mSDsCounter, 0 mSdLazyCounter, 31260 mSolverCounterSat, 14921 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22757 SdHoareTripleChecker+Valid, 7875 SdHoareTripleChecker+Invalid, 46181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 14921 IncrementalHoareTripleChecker+Valid, 31260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:41:44,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22757 Valid, 7875 Invalid, 46181 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [14921 Valid, 31260 Invalid, 0 Unknown, 0 Unchecked, 50.6s Time] [2022-11-23 03:41:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42142 states. [2022-11-23 03:41:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42142 to 23042. [2022-11-23 03:41:51,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23042 states, 18471 states have (on average 1.5998592388067783) internal successors, (29551), 19027 states have internal predecessors, (29551), 2965 states have call successors, (2965), 1320 states have call predecessors, (2965), 1605 states have return successors, (4366), 3102 states have call predecessors, (4366), 2943 states have call successors, (4366) [2022-11-23 03:41:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23042 states to 23042 states and 36882 transitions. [2022-11-23 03:41:51,823 INFO L78 Accepts]: Start accepts. Automaton has 23042 states and 36882 transitions. Word has length 522 [2022-11-23 03:41:51,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:41:51,823 INFO L495 AbstractCegarLoop]: Abstraction has 23042 states and 36882 transitions. [2022-11-23 03:41:51,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 18.17391304347826) internal successors, (418), 19 states have internal predecessors, (418), 13 states have call successors, (101), 10 states have call predecessors, (101), 14 states have return successors, (98), 15 states have call predecessors, (98), 13 states have call successors, (98) [2022-11-23 03:41:51,824 INFO L276 IsEmpty]: Start isEmpty. Operand 23042 states and 36882 transitions. [2022-11-23 03:41:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-11-23 03:41:51,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:41:51,870 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 20, 16, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:51,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-23 03:41:52,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:52,071 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:41:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 197645343, now seen corresponding path program 1 times [2022-11-23 03:41:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:52,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889630088] [2022-11-23 03:41:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:52,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:41:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:41:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:41:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:41:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:41:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:41:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:41:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:41:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:41:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:41:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:41:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:41:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-23 03:41:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:41:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:41:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:41:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:41:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:41:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:41:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:41:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:41:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:41:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-23 03:41:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:41:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:41:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:41:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:41:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:41:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:41:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:41:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:41:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-23 03:41:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-11-23 03:41:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:41:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-11-23 03:41:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-11-23 03:41:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-11-23 03:41:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-11-23 03:41:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-11-23 03:41:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-11-23 03:41:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2022-11-23 03:41:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2022-11-23 03:41:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2022-11-23 03:41:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-11-23 03:41:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:41:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-11-23 03:41:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 143 proven. 148 refuted. 0 times theorem prover too weak. 2337 trivial. 0 not checked. [2022-11-23 03:41:53,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:53,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889630088] [2022-11-23 03:41:53,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889630088] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:41:53,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692012457] [2022-11-23 03:41:53,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:53,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:41:53,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:41:53,219 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:41:53,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-23 03:41:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:54,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 3554 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:41:54,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:41:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 999 proven. 0 refuted. 0 times theorem prover too weak. 1629 trivial. 0 not checked. [2022-11-23 03:41:54,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:41:54,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692012457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:54,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:41:54,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-11-23 03:41:54,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077607725] [2022-11-23 03:41:54,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:54,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:41:54,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:54,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:41:54,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:41:54,091 INFO L87 Difference]: Start difference. First operand 23042 states and 36882 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 03:42:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:42:01,215 INFO L93 Difference]: Finished difference Result 44425 states and 71462 transitions. [2022-11-23 03:42:01,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:42:01,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 592 [2022-11-23 03:42:01,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:42:01,339 INFO L225 Difference]: With dead ends: 44425 [2022-11-23 03:42:01,339 INFO L226 Difference]: Without dead ends: 24172 [2022-11-23 03:42:01,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:42:01,450 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 205 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:42:01,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2112 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:42:01,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24172 states. [2022-11-23 03:42:09,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24172 to 24172. [2022-11-23 03:42:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 19567 states have (on average 1.6167015894107426) internal successors, (31634), 20123 states have internal predecessors, (31634), 2965 states have call successors, (2965), 1354 states have call predecessors, (2965), 1639 states have return successors, (4366), 3102 states have call predecessors, (4366), 2943 states have call successors, (4366) [2022-11-23 03:42:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 38965 transitions. [2022-11-23 03:42:09,465 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 38965 transitions. Word has length 592 [2022-11-23 03:42:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:42:09,466 INFO L495 AbstractCegarLoop]: Abstraction has 24172 states and 38965 transitions. [2022-11-23 03:42:09,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 03:42:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 38965 transitions. [2022-11-23 03:42:09,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-23 03:42:09,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:42:09,516 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 20, 16, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:09,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-11-23 03:42:09,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-23 03:42:09,719 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:42:09,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash -322331203, now seen corresponding path program 1 times [2022-11-23 03:42:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:09,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880146693] [2022-11-23 03:42:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:09,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:42:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:42:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:42:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:42:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-23 03:42:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-23 03:42:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-23 03:42:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-23 03:42:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-23 03:42:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-23 03:42:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-23 03:42:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-23 03:42:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-23 03:42:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:42:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:42:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-23 03:42:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-23 03:42:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-23 03:42:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:42:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:42:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-23 03:42:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-23 03:42:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-11-23 03:42:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:42:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-23 03:42:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-23 03:42:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-23 03:42:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-23 03:42:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-23 03:42:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-23 03:42:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-23 03:42:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-23 03:42:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-11-23 03:42:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-23 03:42:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-11-23 03:42:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-11-23 03:42:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-11-23 03:42:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-11-23 03:42:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2022-11-23 03:42:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2022-11-23 03:42:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-11-23 03:42:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-11-23 03:42:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-11-23 03:42:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2022-11-23 03:42:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-23 03:42:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2022-11-23 03:42:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:10,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2637 backedges. 125 proven. 126 refuted. 0 times theorem prover too weak. 2386 trivial. 0 not checked. [2022-11-23 03:42:10,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:10,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880146693] [2022-11-23 03:42:10,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880146693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:42:10,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215295111] [2022-11-23 03:42:10,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:10,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:42:10,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:42:10,997 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:42:11,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66f756c3-ebc8-44e0-b410-e8a204cc75d7/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-23 03:42:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:11,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 3592 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:42:11,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2637 backedges. 1061 proven. 0 refuted. 0 times theorem prover too weak. 1576 trivial. 0 not checked. [2022-11-23 03:42:12,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:12,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215295111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:12,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:42:12,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 16 [2022-11-23 03:42:12,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355099424] [2022-11-23 03:42:12,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:12,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:42:12,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:12,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:42:12,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:42:12,640 INFO L87 Difference]: Start difference. First operand 24172 states and 38965 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-23 03:42:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:42:20,901 INFO L93 Difference]: Finished difference Result 47696 states and 78095 transitions. [2022-11-23 03:42:20,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:42:20,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 602 [2022-11-23 03:42:20,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:42:21,002 INFO L225 Difference]: With dead ends: 47696 [2022-11-23 03:42:21,003 INFO L226 Difference]: Without dead ends: 23477 [2022-11-23 03:42:21,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:42:21,105 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 612 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:42:21,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1911 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:42:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23477 states.