./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --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 7adc5be84218941c02109a6f05aa2044beb278121fd387aba807705fdb759027 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:16:40,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:16:40,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:16:40,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:16:40,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:16:40,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:16:40,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:16:40,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:16:40,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:16:40,454 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:16:40,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:16:40,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:16:40,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:16:40,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:16:40,455 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:16:40,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:16:40,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:16:40,458 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:16:40,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:16:40,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:16:40,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:16:40,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:16:40,460 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 7adc5be84218941c02109a6f05aa2044beb278121fd387aba807705fdb759027 [2024-11-28 03:16:40,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:16:40,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:16:40,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:16:40,815 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:16:40,815 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:16:40,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c [2024-11-28 03:16:43,687 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/data/c42b6ff9b/eee5efd6946d4ad9876fdbe451c97547/FLAGf4016a90f [2024-11-28 03:16:44,639 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:16:44,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c [2024-11-28 03:16:44,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/data/c42b6ff9b/eee5efd6946d4ad9876fdbe451c97547/FLAGf4016a90f [2024-11-28 03:16:44,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/data/c42b6ff9b/eee5efd6946d4ad9876fdbe451c97547 [2024-11-28 03:16:44,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:16:44,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:16:44,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:16:44,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:16:44,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:16:44,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:44" (1/1) ... [2024-11-28 03:16:44,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28232f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:44, skipping insertion in model container [2024-11-28 03:16:44,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:44" (1/1) ... [2024-11-28 03:16:45,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:16:47,032 WARN L250 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_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c[380323,380336] [2024-11-28 03:16:47,079 WARN L250 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_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c[383339,383352] [2024-11-28 03:16:47,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:16:47,249 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:16:48,346 WARN L250 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_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c[380323,380336] [2024-11-28 03:16:48,352 WARN L250 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_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/sv-benchmarks/c/combinations/Problem05_label45+token_ring.01.cil-2.c[383339,383352] [2024-11-28 03:16:48,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:16:48,439 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:16:48,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48 WrapperNode [2024-11-28 03:16:48,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:16:48,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:16:48,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:16:48,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:16:48,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:48,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:48,906 INFO L138 Inliner]: procedures = 46, calls = 45, calls flagged for inlining = 23, calls inlined = 23, statements flattened = 12574 [2024-11-28 03:16:48,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:16:48,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:16:48,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:16:48,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:16:48,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:48,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:48,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,112 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:16:49,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:16:49,463 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:16:49,464 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:16:49,464 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:16:49,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (1/1) ... [2024-11-28 03:16:49,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:16:49,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:16:49,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:16:49,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:16:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:16:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-28 03:16:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-28 03:16:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 03:16:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 03:16:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 03:16:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 03:16:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 03:16:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 03:16:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 03:16:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 03:16:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 03:16:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 03:16:49,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:16:49,536 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 03:16:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 03:16:49,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:16:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:16:49,643 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:16:49,645 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:17:00,695 INFO L? ?]: Removed 1693 outVars from TransFormulas that were not future-live. [2024-11-28 03:17:00,696 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:17:00,788 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:17:00,789 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-28 03:17:00,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:00 BoogieIcfgContainer [2024-11-28 03:17:00,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:17:00,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:17:00,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:17:00,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:17:00,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:16:44" (1/3) ... [2024-11-28 03:17:00,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4277e063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:00, skipping insertion in model container [2024-11-28 03:17:00,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:48" (2/3) ... [2024-11-28 03:17:00,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4277e063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:00, skipping insertion in model container [2024-11-28 03:17:00,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:00" (3/3) ... [2024-11-28 03:17:00,804 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.01.cil-2.c [2024-11-28 03:17:00,825 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:17:00,827 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label45+token_ring.01.cil-2.c that has 8 procedures, 2296 locations, 1 initial locations, 5 loop locations, and 2 error locations. [2024-11-28 03:17:00,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:00,976 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3e978dcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:00,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:17:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 2296 states, 2270 states have (on average 1.8590308370044053) internal successors, (4220), 2274 states have internal predecessors, (4220), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:17:01,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:17:01,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:01,005 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:01,006 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:01,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:01,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2035983254, now seen corresponding path program 1 times [2024-11-28 03:17:01,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:01,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777368887] [2024-11-28 03:17:01,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:01,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:01,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:01,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:01,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777368887] [2024-11-28 03:17:01,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777368887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:01,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:01,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:17:01,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74949089] [2024-11-28 03:17:01,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:01,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:01,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:01,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:01,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:01,590 INFO L87 Difference]: Start difference. First operand has 2296 states, 2270 states have (on average 1.8590308370044053) internal successors, (4220), 2274 states have internal predecessors, (4220), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:02,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:02,322 INFO L93 Difference]: Finished difference Result 4687 states and 8659 transitions. [2024-11-28 03:17:02,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:17:02,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2024-11-28 03:17:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:02,358 INFO L225 Difference]: With dead ends: 4687 [2024-11-28 03:17:02,358 INFO L226 Difference]: Without dead ends: 2330 [2024-11-28 03:17:02,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:02,376 INFO L435 NwaCegarLoop]: 4154 mSDtfsCounter, 4253 mSDsluCounter, 8354 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4262 SdHoareTripleChecker+Valid, 12508 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:02,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4262 Valid, 12508 Invalid, 224 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:17:02,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2024-11-28 03:17:02,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2321. [2024-11-28 03:17:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2279 states have (on average 1.8398420359806933) internal successors, (4193), 2283 states have internal predecessors, (4193), 27 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-28 03:17:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 4246 transitions. [2024-11-28 03:17:02,601 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 4246 transitions. Word has length 56 [2024-11-28 03:17:02,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:02,601 INFO L471 AbstractCegarLoop]: Abstraction has 2321 states and 4246 transitions. [2024-11-28 03:17:02,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:02,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 4246 transitions. [2024-11-28 03:17:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:17:02,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:02,604 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:02,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:17:02,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:02,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:02,606 INFO L85 PathProgramCache]: Analyzing trace with hash 205450130, now seen corresponding path program 1 times [2024-11-28 03:17:02,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:02,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894605001] [2024-11-28 03:17:02,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:02,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:02,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:02,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894605001] [2024-11-28 03:17:02,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894605001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:02,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:02,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:02,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253360357] [2024-11-28 03:17:02,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:02,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:02,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:02,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:02,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:02,860 INFO L87 Difference]: Start difference. First operand 2321 states and 4246 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:03,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:03,498 INFO L93 Difference]: Finished difference Result 2625 states and 4685 transitions. [2024-11-28 03:17:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:03,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2024-11-28 03:17:03,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:03,516 INFO L225 Difference]: With dead ends: 2625 [2024-11-28 03:17:03,516 INFO L226 Difference]: Without dead ends: 2434 [2024-11-28 03:17:03,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:03,519 INFO L435 NwaCegarLoop]: 4150 mSDtfsCounter, 4173 mSDsluCounter, 12404 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4182 SdHoareTripleChecker+Valid, 16554 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:03,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4182 Valid, 16554 Invalid, 394 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:17:03,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2024-11-28 03:17:03,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2409. [2024-11-28 03:17:03,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2350 states have (on average 1.8280851063829788) internal successors, (4296), 2355 states have internal predecessors, (4296), 37 states have call successors, (37), 19 states have call predecessors, (37), 20 states have return successors, (39), 36 states have call predecessors, (39), 35 states have call successors, (39) [2024-11-28 03:17:03,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 4372 transitions. [2024-11-28 03:17:03,644 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 4372 transitions. Word has length 56 [2024-11-28 03:17:03,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:03,644 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 4372 transitions. [2024-11-28 03:17:03,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 4372 transitions. [2024-11-28 03:17:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:17:03,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:03,651 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:03,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:17:03,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:03,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:03,651 INFO L85 PathProgramCache]: Analyzing trace with hash -691943148, now seen corresponding path program 1 times [2024-11-28 03:17:03,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:03,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574314289] [2024-11-28 03:17:03,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:03,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:03,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:03,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574314289] [2024-11-28 03:17:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574314289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:03,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:03,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:03,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499910077] [2024-11-28 03:17:03,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:03,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:03,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:03,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:03,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:03,907 INFO L87 Difference]: Start difference. First operand 2409 states and 4372 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:04,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:04,516 INFO L93 Difference]: Finished difference Result 2917 states and 5103 transitions. [2024-11-28 03:17:04,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:04,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2024-11-28 03:17:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:04,531 INFO L225 Difference]: With dead ends: 2917 [2024-11-28 03:17:04,531 INFO L226 Difference]: Without dead ends: 2638 [2024-11-28 03:17:04,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:04,534 INFO L435 NwaCegarLoop]: 4144 mSDtfsCounter, 4212 mSDsluCounter, 12381 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4223 SdHoareTripleChecker+Valid, 16525 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:04,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4223 Valid, 16525 Invalid, 400 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:17:04,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2024-11-28 03:17:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 2584. [2024-11-28 03:17:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2491 states have (on average 1.806904857486953) internal successors, (4501), 2500 states have internal predecessors, (4501), 55 states have call successors, (55), 31 states have call predecessors, (55), 36 states have return successors, (69), 56 states have call predecessors, (69), 53 states have call successors, (69) [2024-11-28 03:17:04,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 4625 transitions. [2024-11-28 03:17:04,670 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 4625 transitions. Word has length 56 [2024-11-28 03:17:04,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:04,670 INFO L471 AbstractCegarLoop]: Abstraction has 2584 states and 4625 transitions. [2024-11-28 03:17:04,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:04,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 4625 transitions. [2024-11-28 03:17:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:17:04,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:04,677 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:04,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:17:04,677 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:04,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:04,677 INFO L85 PathProgramCache]: Analyzing trace with hash -443796654, now seen corresponding path program 1 times [2024-11-28 03:17:04,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:04,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215861807] [2024-11-28 03:17:04,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:04,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:04,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:04,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215861807] [2024-11-28 03:17:04,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215861807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:04,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:04,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:04,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179218302] [2024-11-28 03:17:04,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:04,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:04,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:04,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:04,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:04,874 INFO L87 Difference]: Start difference. First operand 2584 states and 4625 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:05,506 INFO L93 Difference]: Finished difference Result 3432 states and 5858 transitions. [2024-11-28 03:17:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2024-11-28 03:17:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:05,523 INFO L225 Difference]: With dead ends: 3432 [2024-11-28 03:17:05,523 INFO L226 Difference]: Without dead ends: 2978 [2024-11-28 03:17:05,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:05,528 INFO L435 NwaCegarLoop]: 4138 mSDtfsCounter, 4165 mSDsluCounter, 12371 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4173 SdHoareTripleChecker+Valid, 16509 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:05,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4173 Valid, 16509 Invalid, 419 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:17:05,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2024-11-28 03:17:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2895. [2024-11-28 03:17:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2734 states have (on average 1.768471104608632) internal successors, (4835), 2757 states have internal predecessors, (4835), 87 states have call successors, (87), 53 states have call predecessors, (87), 72 states have return successors, (149), 92 states have call predecessors, (149), 85 states have call successors, (149) [2024-11-28 03:17:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 5071 transitions. [2024-11-28 03:17:05,653 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 5071 transitions. Word has length 56 [2024-11-28 03:17:05,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:05,653 INFO L471 AbstractCegarLoop]: Abstraction has 2895 states and 5071 transitions. [2024-11-28 03:17:05,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 5071 transitions. [2024-11-28 03:17:05,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:17:05,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:05,656 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:05,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:17:05,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:05,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:05,657 INFO L85 PathProgramCache]: Analyzing trace with hash -20149932, now seen corresponding path program 1 times [2024-11-28 03:17:05,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:05,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556246360] [2024-11-28 03:17:05,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:05,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:05,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:05,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556246360] [2024-11-28 03:17:05,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556246360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:05,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:05,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:17:05,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997266656] [2024-11-28 03:17:05,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:05,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:17:05,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:05,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:17:05,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:17:05,716 INFO L87 Difference]: Start difference. First operand 2895 states and 5071 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:05,957 INFO L93 Difference]: Finished difference Result 4076 states and 6792 transitions. [2024-11-28 03:17:05,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:05,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2024-11-28 03:17:05,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:05,977 INFO L225 Difference]: With dead ends: 4076 [2024-11-28 03:17:05,977 INFO L226 Difference]: Without dead ends: 3312 [2024-11-28 03:17:05,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:17:05,982 INFO L435 NwaCegarLoop]: 4219 mSDtfsCounter, 4200 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 8381 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:05,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4200 Valid, 8381 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:05,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2024-11-28 03:17:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3289. [2024-11-28 03:17:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 3043 states have (on average 1.7223135064081498) internal successors, (5241), 3077 states have internal predecessors, (5241), 136 states have call successors, (136), 83 states have call predecessors, (136), 108 states have return successors, (211), 136 states have call predecessors, (211), 134 states have call successors, (211) [2024-11-28 03:17:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 5588 transitions. [2024-11-28 03:17:06,241 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 5588 transitions. Word has length 56 [2024-11-28 03:17:06,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:06,241 INFO L471 AbstractCegarLoop]: Abstraction has 3289 states and 5588 transitions. [2024-11-28 03:17:06,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 5588 transitions. [2024-11-28 03:17:06,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 03:17:06,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:06,250 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:17:06,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:17:06,250 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:06,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1885602584, now seen corresponding path program 1 times [2024-11-28 03:17:06,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:06,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368848143] [2024-11-28 03:17:06,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:06,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:06,390 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:17:06,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:06,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368848143] [2024-11-28 03:17:06,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368848143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:06,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859884027] [2024-11-28 03:17:06,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:06,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:06,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:06,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:06,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:17:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:06,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:17:06,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:17:06,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:06,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859884027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:06,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:06,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:17:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504236096] [2024-11-28 03:17:06,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:06,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:06,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:06,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:06,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:06,563 INFO L87 Difference]: Start difference. First operand 3289 states and 5588 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:17:06,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:06,754 INFO L93 Difference]: Finished difference Result 5494 states and 8724 transitions. [2024-11-28 03:17:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:06,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2024-11-28 03:17:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:06,779 INFO L225 Difference]: With dead ends: 5494 [2024-11-28 03:17:06,779 INFO L226 Difference]: Without dead ends: 4337 [2024-11-28 03:17:06,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:06,785 INFO L435 NwaCegarLoop]: 4225 mSDtfsCounter, 113 mSDsluCounter, 4105 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 8330 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:06,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 8330 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:06,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4337 states. [2024-11-28 03:17:06,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4337 to 4337. [2024-11-28 03:17:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4337 states, 3868 states have (on average 1.642450879007239) internal successors, (6353), 3929 states have internal predecessors, (6353), 255 states have call successors, (255), 161 states have call predecessors, (255), 212 states have return successors, (440), 262 states have call predecessors, (440), 253 states have call successors, (440) [2024-11-28 03:17:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 7048 transitions. [2024-11-28 03:17:07,026 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 7048 transitions. Word has length 90 [2024-11-28 03:17:07,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:07,027 INFO L471 AbstractCegarLoop]: Abstraction has 4337 states and 7048 transitions. [2024-11-28 03:17:07,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:17:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 7048 transitions. [2024-11-28 03:17:07,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 03:17:07,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:07,040 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:07,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:17:07,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:07,241 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:07,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:07,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1487409158, now seen corresponding path program 1 times [2024-11-28 03:17:07,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:07,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735978764] [2024-11-28 03:17:07,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:07,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 03:17:07,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:07,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735978764] [2024-11-28 03:17:07,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735978764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:07,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422852408] [2024-11-28 03:17:07,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:07,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:07,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:07,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:17:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:07,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:17:07,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:17:07,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:07,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422852408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:07,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:07,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:17:07,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903704784] [2024-11-28 03:17:07,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:07,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:07,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:07,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:07,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:07,706 INFO L87 Difference]: Start difference. First operand 4337 states and 7048 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:17:08,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:08,001 INFO L93 Difference]: Finished difference Result 8605 states and 13041 transitions. [2024-11-28 03:17:08,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2024-11-28 03:17:08,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:08,051 INFO L225 Difference]: With dead ends: 8605 [2024-11-28 03:17:08,052 INFO L226 Difference]: Without dead ends: 6403 [2024-11-28 03:17:08,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:08,062 INFO L435 NwaCegarLoop]: 4127 mSDtfsCounter, 4037 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4037 SdHoareTripleChecker+Valid, 4256 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:08,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4037 Valid, 4256 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6403 states. [2024-11-28 03:17:08,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 6371. [2024-11-28 03:17:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6371 states, 5480 states have (on average 1.5556569343065694) internal successors, (8525), 5598 states have internal predecessors, (8525), 475 states have call successors, (475), 311 states have call predecessors, (475), 414 states have return successors, (816), 477 states have call predecessors, (816), 473 states have call successors, (816) [2024-11-28 03:17:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 9816 transitions. [2024-11-28 03:17:08,435 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 9816 transitions. Word has length 116 [2024-11-28 03:17:08,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:08,437 INFO L471 AbstractCegarLoop]: Abstraction has 6371 states and 9816 transitions. [2024-11-28 03:17:08,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:17:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 9816 transitions. [2024-11-28 03:17:08,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:17:08,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:08,452 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:08,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:17:08,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:08,653 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:08,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:08,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1688156268, now seen corresponding path program 1 times [2024-11-28 03:17:08,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:08,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003772309] [2024-11-28 03:17:08,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:08,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 03:17:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:08,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003772309] [2024-11-28 03:17:08,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003772309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:08,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912599935] [2024-11-28 03:17:08,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:08,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:08,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:08,790 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:08,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:17:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:08,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:17:08,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:08,977 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 03:17:08,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:08,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912599935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:08,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:08,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:17:08,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104502644] [2024-11-28 03:17:08,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:08,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:08,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:08,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:08,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:08,982 INFO L87 Difference]: Start difference. First operand 6371 states and 9816 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:17:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:09,418 INFO L93 Difference]: Finished difference Result 9658 states and 14346 transitions. [2024-11-28 03:17:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:09,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 131 [2024-11-28 03:17:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:09,458 INFO L225 Difference]: With dead ends: 9658 [2024-11-28 03:17:09,458 INFO L226 Difference]: Without dead ends: 6699 [2024-11-28 03:17:09,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:09,469 INFO L435 NwaCegarLoop]: 4131 mSDtfsCounter, 4058 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:09,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 4268 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6699 states. [2024-11-28 03:17:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6699 to 6661. [2024-11-28 03:17:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6661 states, 5738 states have (on average 1.528232833739979) internal successors, (8769), 5856 states have internal predecessors, (8769), 481 states have call successors, (481), 337 states have call predecessors, (481), 440 states have return successors, (848), 483 states have call predecessors, (848), 479 states have call successors, (848) [2024-11-28 03:17:09,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6661 states to 6661 states and 10098 transitions. [2024-11-28 03:17:09,848 INFO L78 Accepts]: Start accepts. Automaton has 6661 states and 10098 transitions. Word has length 131 [2024-11-28 03:17:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:09,848 INFO L471 AbstractCegarLoop]: Abstraction has 6661 states and 10098 transitions. [2024-11-28 03:17:09,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:17:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6661 states and 10098 transitions. [2024-11-28 03:17:09,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:17:09,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:09,863 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:09,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:17:10,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:10,068 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:10,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:10,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1774940867, now seen corresponding path program 1 times [2024-11-28 03:17:10,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:10,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276441510] [2024-11-28 03:17:10,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:10,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:10,190 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 03:17:10,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:10,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276441510] [2024-11-28 03:17:10,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276441510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:10,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139805436] [2024-11-28 03:17:10,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:10,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:10,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:10,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:10,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:17:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:10,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:17:10,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-28 03:17:10,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:10,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139805436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:10,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:10,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:17:10,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985715693] [2024-11-28 03:17:10,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:10,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:10,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:10,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:10,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:10,345 INFO L87 Difference]: Start difference. First operand 6661 states and 10098 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:17:10,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:10,988 INFO L93 Difference]: Finished difference Result 15381 states and 22060 transitions. [2024-11-28 03:17:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:10,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 132 [2024-11-28 03:17:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:11,038 INFO L225 Difference]: With dead ends: 15381 [2024-11-28 03:17:11,038 INFO L226 Difference]: Without dead ends: 10857 [2024-11-28 03:17:11,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:11,054 INFO L435 NwaCegarLoop]: 4221 mSDtfsCounter, 124 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 8325 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:11,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 8325 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10857 states. [2024-11-28 03:17:11,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10857 to 10841. [2024-11-28 03:17:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10841 states, 9048 states have (on average 1.4417550839964632) internal successors, (13045), 9282 states have internal predecessors, (13045), 927 states have call successors, (927), 657 states have call predecessors, (927), 864 states have return successors, (1806), 933 states have call predecessors, (1806), 925 states have call successors, (1806) [2024-11-28 03:17:11,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10841 states to 10841 states and 15778 transitions. [2024-11-28 03:17:11,712 INFO L78 Accepts]: Start accepts. Automaton has 10841 states and 15778 transitions. Word has length 132 [2024-11-28 03:17:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:11,713 INFO L471 AbstractCegarLoop]: Abstraction has 10841 states and 15778 transitions. [2024-11-28 03:17:11,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:17:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 10841 states and 15778 transitions. [2024-11-28 03:17:11,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:17:11,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:11,735 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:11,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:17:11,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:11,936 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:11,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1782495515, now seen corresponding path program 1 times [2024-11-28 03:17:11,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:11,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766395440] [2024-11-28 03:17:11,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:11,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:12,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:12,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766395440] [2024-11-28 03:17:12,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766395440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:12,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322426804] [2024-11-28 03:17:12,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:12,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:12,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:12,034 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:12,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:17:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:12,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:17:12,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:17:12,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:12,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322426804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:12,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:12,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:17:12,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852939536] [2024-11-28 03:17:12,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:12,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:12,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:12,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:12,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:12,200 INFO L87 Difference]: Start difference. First operand 10841 states and 15778 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:17:12,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:12,737 INFO L93 Difference]: Finished difference Result 15339 states and 22206 transitions. [2024-11-28 03:17:12,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:12,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (12), 3 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 133 [2024-11-28 03:17:12,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:12,786 INFO L225 Difference]: With dead ends: 15339 [2024-11-28 03:17:12,786 INFO L226 Difference]: Without dead ends: 10861 [2024-11-28 03:17:12,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:12,804 INFO L435 NwaCegarLoop]: 4187 mSDtfsCounter, 109 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 8283 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:12,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 8283 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2024-11-28 03:17:13,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10817. [2024-11-28 03:17:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 9024 states have (on average 1.428302304964539) internal successors, (12889), 9258 states have internal predecessors, (12889), 927 states have call successors, (927), 657 states have call predecessors, (927), 864 states have return successors, (1806), 933 states have call predecessors, (1806), 925 states have call successors, (1806) [2024-11-28 03:17:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 15622 transitions. [2024-11-28 03:17:13,428 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 15622 transitions. Word has length 133 [2024-11-28 03:17:13,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:13,428 INFO L471 AbstractCegarLoop]: Abstraction has 10817 states and 15622 transitions. [2024-11-28 03:17:13,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:17:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 15622 transitions. [2024-11-28 03:17:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:17:13,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:13,450 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:13,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:17:13,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:17:13,651 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:13,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1988133277, now seen corresponding path program 1 times [2024-11-28 03:17:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:13,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287602289] [2024-11-28 03:17:13,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:13,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:13,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287602289] [2024-11-28 03:17:13,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287602289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730156761] [2024-11-28 03:17:13,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:13,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:13,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:13,749 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:13,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:17:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:13,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:17:13,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:13,904 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:17:13,904 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:13,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730156761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:13,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:13,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:17:13,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886893524] [2024-11-28 03:17:13,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:13,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:13,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:13,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:13,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:13,906 INFO L87 Difference]: Start difference. First operand 10817 states and 15622 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:17:14,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:14,610 INFO L93 Difference]: Finished difference Result 17187 states and 24470 transitions. [2024-11-28 03:17:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:14,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 133 [2024-11-28 03:17:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:14,659 INFO L225 Difference]: With dead ends: 17187 [2024-11-28 03:17:14,660 INFO L226 Difference]: Without dead ends: 9531 [2024-11-28 03:17:14,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:14,685 INFO L435 NwaCegarLoop]: 4109 mSDtfsCounter, 4085 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:14,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 4133 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9531 states. [2024-11-28 03:17:15,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9531 to 9099. [2024-11-28 03:17:15,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9099 states, 7712 states have (on average 1.415067427385892) internal successors, (10913), 7834 states have internal predecessors, (10913), 755 states have call successors, (755), 535 states have call predecessors, (755), 630 states have return successors, (1162), 745 states have call predecessors, (1162), 753 states have call successors, (1162) [2024-11-28 03:17:15,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9099 states to 9099 states and 12830 transitions. [2024-11-28 03:17:15,473 INFO L78 Accepts]: Start accepts. Automaton has 9099 states and 12830 transitions. Word has length 133 [2024-11-28 03:17:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:15,473 INFO L471 AbstractCegarLoop]: Abstraction has 9099 states and 12830 transitions. [2024-11-28 03:17:15,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:17:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9099 states and 12830 transitions. [2024-11-28 03:17:15,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:17:15,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:15,492 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:15,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:17:15,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:17:15,693 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:15,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:15,693 INFO L85 PathProgramCache]: Analyzing trace with hash 304742688, now seen corresponding path program 1 times [2024-11-28 03:17:15,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:15,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607582965] [2024-11-28 03:17:15,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:15,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:15,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:15,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607582965] [2024-11-28 03:17:15,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607582965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:15,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134502335] [2024-11-28 03:17:15,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:15,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:15,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:15,817 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:15,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:17:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:16,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:17:16,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-28 03:17:16,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:16,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134502335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:16,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:16,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 03:17:16,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118099913] [2024-11-28 03:17:16,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:16,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:16,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:16,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:16,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:17:16,125 INFO L87 Difference]: Start difference. First operand 9099 states and 12830 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:17:16,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:16,631 INFO L93 Difference]: Finished difference Result 11791 states and 16389 transitions. [2024-11-28 03:17:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:16,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 134 [2024-11-28 03:17:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:16,661 INFO L225 Difference]: With dead ends: 11791 [2024-11-28 03:17:16,661 INFO L226 Difference]: Without dead ends: 7245 [2024-11-28 03:17:16,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:16,673 INFO L435 NwaCegarLoop]: 4055 mSDtfsCounter, 4104 mSDsluCounter, 8065 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4112 SdHoareTripleChecker+Valid, 12120 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:16,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4112 Valid, 12120 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:17:16,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7245 states. [2024-11-28 03:17:17,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7245 to 7221. [2024-11-28 03:17:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7221 states, 6224 states have (on average 1.4371786632390746) internal successors, (8945), 6278 states have internal predecessors, (8945), 567 states have call successors, (567), 397 states have call predecessors, (567), 428 states have return successors, (766), 553 states have call predecessors, (766), 565 states have call successors, (766) [2024-11-28 03:17:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 10278 transitions. [2024-11-28 03:17:17,040 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 10278 transitions. Word has length 134 [2024-11-28 03:17:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:17,040 INFO L471 AbstractCegarLoop]: Abstraction has 7221 states and 10278 transitions. [2024-11-28 03:17:17,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:17:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 10278 transitions. [2024-11-28 03:17:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:17:17,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:17,048 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:17,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:17:17,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:17,253 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:17,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:17,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1335783586, now seen corresponding path program 1 times [2024-11-28 03:17:17,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:17,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28451395] [2024-11-28 03:17:17,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:17,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:17,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:17,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28451395] [2024-11-28 03:17:17,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28451395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:17,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314317921] [2024-11-28 03:17:17,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:17,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:17,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:17,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:17,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:17:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:17,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:17:17,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-28 03:17:17,607 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:17,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314317921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:17,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:17,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 03:17:17,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97755136] [2024-11-28 03:17:17,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:17,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:17,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:17,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:17,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:17:17,608 INFO L87 Difference]: Start difference. First operand 7221 states and 10278 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:17:18,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:18,316 INFO L93 Difference]: Finished difference Result 11389 states and 15654 transitions. [2024-11-28 03:17:18,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:17:18,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 134 [2024-11-28 03:17:18,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:18,345 INFO L225 Difference]: With dead ends: 11389 [2024-11-28 03:17:18,345 INFO L226 Difference]: Without dead ends: 6869 [2024-11-28 03:17:18,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:17:18,358 INFO L435 NwaCegarLoop]: 4053 mSDtfsCounter, 4142 mSDsluCounter, 8060 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4151 SdHoareTripleChecker+Valid, 12113 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:18,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4151 Valid, 12113 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:17:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6869 states. [2024-11-28 03:17:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6869 to 5167. [2024-11-28 03:17:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 4590 states have (on average 1.489760348583878) internal successors, (6838), 4620 states have internal predecessors, (6838), 331 states have call successors, (331), 229 states have call predecessors, (331), 244 states have return successors, (439), 321 states have call predecessors, (439), 329 states have call successors, (439) [2024-11-28 03:17:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 7608 transitions. [2024-11-28 03:17:18,625 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 7608 transitions. Word has length 134 [2024-11-28 03:17:18,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:18,625 INFO L471 AbstractCegarLoop]: Abstraction has 5167 states and 7608 transitions. [2024-11-28 03:17:18,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:17:18,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 7608 transitions. [2024-11-28 03:17:18,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:17:18,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:18,630 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:18,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:17:18,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:18,834 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:18,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash -570619680, now seen corresponding path program 1 times [2024-11-28 03:17:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:18,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008656871] [2024-11-28 03:17:18,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:18,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:18,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:18,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008656871] [2024-11-28 03:17:18,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008656871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:18,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578263736] [2024-11-28 03:17:18,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:18,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:18,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:18,931 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:18,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:17:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:19,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:17:19,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:17:19,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:17:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-28 03:17:19,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578263736] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:19,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:17:19,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-28 03:17:19,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409980541] [2024-11-28 03:17:19,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:19,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:17:19,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:19,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:17:19,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:17:19,290 INFO L87 Difference]: Start difference. First operand 5167 states and 7608 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:17:19,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:19,871 INFO L93 Difference]: Finished difference Result 8984 states and 12128 transitions. [2024-11-28 03:17:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:19,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 134 [2024-11-28 03:17:19,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:19,898 INFO L225 Difference]: With dead ends: 8984 [2024-11-28 03:17:19,899 INFO L226 Difference]: Without dead ends: 7532 [2024-11-28 03:17:19,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:17:19,904 INFO L435 NwaCegarLoop]: 4199 mSDtfsCounter, 4178 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 8350 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:19,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 8350 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:17:19,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7532 states. [2024-11-28 03:17:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7532 to 6278. [2024-11-28 03:17:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6278 states, 5493 states have (on average 1.4296377207354816) internal successors, (7853), 5527 states have internal predecessors, (7853), 451 states have call successors, (451), 309 states have call predecessors, (451), 332 states have return successors, (597), 445 states have call predecessors, (597), 449 states have call successors, (597) [2024-11-28 03:17:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6278 states to 6278 states and 8901 transitions. [2024-11-28 03:17:20,265 INFO L78 Accepts]: Start accepts. Automaton has 6278 states and 8901 transitions. Word has length 134 [2024-11-28 03:17:20,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:20,267 INFO L471 AbstractCegarLoop]: Abstraction has 6278 states and 8901 transitions. [2024-11-28 03:17:20,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:17:20,268 INFO L276 IsEmpty]: Start isEmpty. Operand 6278 states and 8901 transitions. [2024-11-28 03:17:20,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:17:20,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:20,273 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:20,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:17:20,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:17:20,478 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:20,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:20,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1560607608, now seen corresponding path program 1 times [2024-11-28 03:17:20,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:20,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925700994] [2024-11-28 03:17:20,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:20,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:20,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:20,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925700994] [2024-11-28 03:17:20,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925700994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:20,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991179615] [2024-11-28 03:17:20,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:20,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:20,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:20,563 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:20,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:17:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:20,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:17:20,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 03:17:20,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991179615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:20,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:20,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 03:17:20,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252576433] [2024-11-28 03:17:20,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:20,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:20,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:20,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:20,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:20,698 INFO L87 Difference]: Start difference. First operand 6278 states and 8901 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:17:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:21,054 INFO L93 Difference]: Finished difference Result 8277 states and 11278 transitions. [2024-11-28 03:17:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 138 [2024-11-28 03:17:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:21,080 INFO L225 Difference]: With dead ends: 8277 [2024-11-28 03:17:21,080 INFO L226 Difference]: Without dead ends: 6282 [2024-11-28 03:17:21,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:21,088 INFO L435 NwaCegarLoop]: 4101 mSDtfsCounter, 0 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8191 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:21,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8191 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:21,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6282 states. [2024-11-28 03:17:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6282 to 6282. [2024-11-28 03:17:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6282 states, 5497 states have (on average 1.4293250864107696) internal successors, (7857), 5531 states have internal predecessors, (7857), 451 states have call successors, (451), 309 states have call predecessors, (451), 332 states have return successors, (597), 445 states have call predecessors, (597), 449 states have call successors, (597) [2024-11-28 03:17:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6282 states to 6282 states and 8905 transitions. [2024-11-28 03:17:21,444 INFO L78 Accepts]: Start accepts. Automaton has 6282 states and 8905 transitions. Word has length 138 [2024-11-28 03:17:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:21,444 INFO L471 AbstractCegarLoop]: Abstraction has 6282 states and 8905 transitions. [2024-11-28 03:17:21,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:17:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6282 states and 8905 transitions. [2024-11-28 03:17:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:17:21,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:21,449 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:21,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:17:21,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:17:21,654 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:21,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:21,654 INFO L85 PathProgramCache]: Analyzing trace with hash 95046493, now seen corresponding path program 1 times [2024-11-28 03:17:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:21,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890606347] [2024-11-28 03:17:21,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:21,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:21,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:21,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890606347] [2024-11-28 03:17:21,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890606347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:21,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669160040] [2024-11-28 03:17:21,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:21,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:21,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:21,745 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:21,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:17:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:21,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:17:21,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:21,893 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 03:17:21,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:21,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669160040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:21,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:21,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-28 03:17:21,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446182282] [2024-11-28 03:17:21,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:21,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:21,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:21,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:21,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:17:21,895 INFO L87 Difference]: Start difference. First operand 6282 states and 8905 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, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:17:22,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:22,154 INFO L93 Difference]: Finished difference Result 8360 states and 11419 transitions. [2024-11-28 03:17:22,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:17:22,154 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, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 139 [2024-11-28 03:17:22,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:22,174 INFO L225 Difference]: With dead ends: 8360 [2024-11-28 03:17:22,175 INFO L226 Difference]: Without dead ends: 4904 [2024-11-28 03:17:22,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:17:22,182 INFO L435 NwaCegarLoop]: 4099 mSDtfsCounter, 0 mSDsluCounter, 12291 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16390 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:22,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16390 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:22,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4904 states. [2024-11-28 03:17:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4904 to 4904. [2024-11-28 03:17:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4904 states, 4367 states have (on average 1.487291046485001) internal successors, (6495), 4393 states have internal predecessors, (6495), 307 states have call successors, (307), 205 states have call predecessors, (307), 228 states have return successors, (361), 309 states have call predecessors, (361), 305 states have call successors, (361) [2024-11-28 03:17:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4904 states to 4904 states and 7163 transitions. [2024-11-28 03:17:22,520 INFO L78 Accepts]: Start accepts. Automaton has 4904 states and 7163 transitions. Word has length 139 [2024-11-28 03:17:22,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:22,520 INFO L471 AbstractCegarLoop]: Abstraction has 4904 states and 7163 transitions. [2024-11-28 03:17:22,520 INFO L472 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, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:17:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4904 states and 7163 transitions. [2024-11-28 03:17:22,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:17:22,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:22,525 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:22,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:17:22,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:17:22,726 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:22,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:22,726 INFO L85 PathProgramCache]: Analyzing trace with hash 442665313, now seen corresponding path program 1 times [2024-11-28 03:17:22,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:22,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914696820] [2024-11-28 03:17:22,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:22,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:22,811 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 03:17:22,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:22,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914696820] [2024-11-28 03:17:22,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914696820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:17:22,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877479453] [2024-11-28 03:17:22,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:22,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:17:22,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:22,815 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:17:22,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:17:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:22,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:17:22,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:22,944 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:17:22,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:17:22,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877479453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:22,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:17:22,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2024-11-28 03:17:22,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550374438] [2024-11-28 03:17:22,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:22,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:22,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:22,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:22,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:22,947 INFO L87 Difference]: Start difference. First operand 4904 states and 7163 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:17:23,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:23,147 INFO L93 Difference]: Finished difference Result 6572 states and 9111 transitions. [2024-11-28 03:17:23,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:17:23,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 139 [2024-11-28 03:17:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:23,161 INFO L225 Difference]: With dead ends: 6572 [2024-11-28 03:17:23,161 INFO L226 Difference]: Without dead ends: 2900 [2024-11-28 03:17:23,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:23,168 INFO L435 NwaCegarLoop]: 4097 mSDtfsCounter, 0 mSDsluCounter, 12285 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16382 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:23,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16382 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2024-11-28 03:17:23,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 2900. [2024-11-28 03:17:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2753 states have (on average 1.6919723937522702) internal successors, (4658), 2761 states have internal predecessors, (4658), 84 states have call successors, (84), 58 states have call predecessors, (84), 61 states have return successors, (87), 81 states have call predecessors, (87), 83 states have call successors, (87) [2024-11-28 03:17:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 4829 transitions. [2024-11-28 03:17:23,267 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 4829 transitions. Word has length 139 [2024-11-28 03:17:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:23,267 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 4829 transitions. [2024-11-28 03:17:23,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 03:17:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 4829 transitions. [2024-11-28 03:17:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:17:23,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:23,270 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:23,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:17:23,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:17:23,475 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:23,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1244097503, now seen corresponding path program 1 times [2024-11-28 03:17:23,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:23,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44317524] [2024-11-28 03:17:23,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:23,497 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:17:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:23,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:17:23,593 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:17:23,594 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-28 03:17:23,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-28 03:17:23,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:17:23,600 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:23,729 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:17:23,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:17:23 BoogieIcfgContainer [2024-11-28 03:17:23,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:17:23,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:17:23,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:17:23,735 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:17:23,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:00" (3/4) ... [2024-11-28 03:17:23,737 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 03:17:23,932 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 102. [2024-11-28 03:17:24,139 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:17:24,147 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:17:24,147 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:17:24,148 INFO L158 Benchmark]: Toolchain (without parser) took 39373.24ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 66.9MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 571.4MB. Max. memory is 16.1GB. [2024-11-28 03:17:24,148 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:17:24,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3664.24ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 66.9MB in the beginning and 254.6MB in the end (delta: -187.8MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. [2024-11-28 03:17:24,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 465.29ms. Allocated memory is still 369.1MB. Free memory was 254.6MB in the beginning and 225.0MB in the end (delta: 29.6MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. [2024-11-28 03:17:24,153 INFO L158 Benchmark]: Boogie Preprocessor took 554.80ms. Allocated memory is still 369.1MB. Free memory was 225.0MB in the beginning and 175.1MB in the end (delta: 49.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-28 03:17:24,154 INFO L158 Benchmark]: RCFGBuilder took 11325.90ms. Allocated memory was 369.1MB in the beginning and 1.4GB in the end (delta: 981.5MB). Free memory was 175.1MB in the beginning and 970.3MB in the end (delta: -795.2MB). Peak memory consumption was 418.0MB. Max. memory is 16.1GB. [2024-11-28 03:17:24,154 INFO L158 Benchmark]: TraceAbstraction took 22939.91ms. Allocated memory was 1.4GB in the beginning and 2.1GB in the end (delta: 771.8MB). Free memory was 970.3MB in the beginning and 1.5GB in the end (delta: -520.5MB). Peak memory consumption was 251.2MB. Max. memory is 16.1GB. [2024-11-28 03:17:24,154 INFO L158 Benchmark]: Witness Printer took 412.58ms. Allocated memory is still 2.1GB. Free memory was 1.5GB in the beginning and 1.9GB in the end (delta: -422.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:17:24,155 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3664.24ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 66.9MB in the beginning and 254.6MB in the end (delta: -187.8MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 465.29ms. Allocated memory is still 369.1MB. Free memory was 254.6MB in the beginning and 225.0MB in the end (delta: 29.6MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 554.80ms. Allocated memory is still 369.1MB. Free memory was 225.0MB in the beginning and 175.1MB in the end (delta: 49.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * RCFGBuilder took 11325.90ms. Allocated memory was 369.1MB in the beginning and 1.4GB in the end (delta: 981.5MB). Free memory was 175.1MB in the beginning and 970.3MB in the end (delta: -795.2MB). Peak memory consumption was 418.0MB. Max. memory is 16.1GB. * TraceAbstraction took 22939.91ms. Allocated memory was 1.4GB in the beginning and 2.1GB in the end (delta: 771.8MB). Free memory was 970.3MB in the beginning and 1.5GB in the end (delta: -520.5MB). Peak memory consumption was 251.2MB. Max. memory is 16.1GB. * Witness Printer took 412.58ms. Allocated memory is still 2.1GB. Free memory was 1.5GB in the beginning and 1.9GB in the end (delta: -422.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 11173]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L33] int d= 4; [L34] int c= 3; [L35] int e= 5; [L36] int a= 1; [L37] int f= 6; [L38] int b= 2; [L40] int a9 = 18; [L41] int a27 = 1; [L42] int a2 = 10; [L43] int a16 = 1; [L44] int a15 = 1; [L45] int a12 = 4; [L46] int a25 = 1; [L47] int a20 = 5; [L11177] int m_pc = 0; [L11178] int t1_pc = 0; [L11179] int m_st ; [L11180] int t1_st ; [L11181] int m_i ; [L11182] int t1_i ; [L11183] int M_E = 2; [L11184] int T1_E = 2; [L11185] int E_M = 2; [L11186] int E_1 = 2; [L11190] int token ; [L11192] int local ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=0, m_pc=0, m_st=0, t1_i=0, t1_pc=0, t1_st=0, token=0] [L11651] COND FALSE !(__VERIFIER_nondet_int()) [L11654] CALL main2() [L11638] int __retres1 ; [L11642] CALL init_model() [L11553] m_i = 1 [L11554] t1_i = 1 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11642] RET init_model() [L11643] CALL start_simulation() [L11579] int kernel_st ; [L11580] int tmp ; [L11581] int tmp___0 ; [L11585] kernel_st = 0 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11586] FCALL update_channels() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11587] CALL init_threads() [L11335] COND TRUE m_i == 1 [L11336] m_st = 0 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11340] COND TRUE t1_i == 1 [L11341] t1_st = 0 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11587] RET init_threads() [L11588] CALL fire_delta_events() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11424] COND FALSE !(M_E == 0) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11429] COND FALSE !(T1_E == 0) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11434] COND FALSE !(E_M == 0) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11439] COND FALSE !(E_1 == 0) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11588] RET fire_delta_events() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11589] CALL activate_threads() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11477] int tmp ; [L11478] int tmp___0 ; [L11482] CALL, EXPR is_master_triggered() [L11286] int __retres1 ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11289] COND FALSE !(m_pc == 1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11299] __retres1 = 0 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, __retres1=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11301] return (__retres1); VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, \result=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11482] RET, EXPR is_master_triggered() [L11482] tmp = is_master_triggered() [L11484] COND FALSE !(\read(tmp)) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11490] CALL, EXPR is_transmit1_triggered() [L11305] int __retres1 ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11308] COND FALSE !(t1_pc == 1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11318] __retres1 = 0 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, __retres1=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11320] return (__retres1); VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, \result=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11490] RET, EXPR is_transmit1_triggered() [L11490] tmp___0 = is_transmit1_triggered() [L11492] COND FALSE !(\read(tmp___0)) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11589] RET activate_threads() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11590] CALL reset_delta_events() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11452] COND FALSE !(M_E == 1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11457] COND FALSE !(T1_E == 1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11462] COND FALSE !(E_M == 1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11467] COND FALSE !(E_1 == 1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \old(E_1)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11590] RET reset_delta_events() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11596] kernel_st = 1 [L11597] CALL eval() [L11371] int tmp ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11378] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11350] int __retres1 ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11353] COND TRUE m_st == 0 [L11354] __retres1 = 1 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, __retres1=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11366] return (__retres1); VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \result=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11378] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11378] tmp = exists_runnable_thread() [L11380] COND TRUE \read(tmp) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11385] COND TRUE m_st == 0 [L11386] int tmp_ndt_1; [L11387] tmp_ndt_1 = __VERIFIER_nondet_int() [L11388] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, token=0] [L11399] COND TRUE t1_st == 0 [L11400] int tmp_ndt_2; [L11401] tmp_ndt_2 = __VERIFIER_nondet_int() [L11402] COND TRUE \read(tmp_ndt_2) [L11404] t1_st = 1 [L11405] CALL transmit1() [L11253] COND TRUE t1_pc == 0 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1, token=0] [L11266] t1_pc = 1 [L11267] t1_st = 2 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11405] RET transmit1() [L11378] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11350] int __retres1 ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11353] COND TRUE m_st == 0 [L11354] __retres1 = 1 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, __retres1=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11366] return (__retres1); VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \result=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11378] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11378] tmp = exists_runnable_thread() [L11380] COND TRUE \read(tmp) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11385] COND TRUE m_st == 0 [L11386] int tmp_ndt_1; [L11387] tmp_ndt_1 = __VERIFIER_nondet_int() [L11388] COND TRUE \read(tmp_ndt_1) [L11390] m_st = 1 [L11391] CALL master() [L11195] int tmp_var = __VERIFIER_nondet_int(); [L11197] COND TRUE m_pc == 0 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L11211] token = __VERIFIER_nondet_int() [L11212] local = token [L11213] E_1 = 1 VAL [E_1=1, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L11214] CALL immediate_notify() VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11506] CALL activate_threads() VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11477] int tmp ; [L11478] int tmp___0 ; [L11482] CALL, EXPR is_master_triggered() [L11286] int __retres1 ; VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11289] COND FALSE !(m_pc == 1) VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11299] __retres1 = 0 VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, __retres1=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11301] return (__retres1); VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, \result=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11482] RET, EXPR is_master_triggered() [L11482] tmp = is_master_triggered() [L11484] COND FALSE !(\read(tmp)) VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11490] CALL, EXPR is_transmit1_triggered() [L11305] int __retres1 ; VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11308] COND TRUE t1_pc == 1 VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11309] COND TRUE E_1 == 1 [L11310] __retres1 = 1 VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, __retres1=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11320] return (__retres1); VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, \result=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=0] [L11490] RET, EXPR is_transmit1_triggered() [L11490] tmp___0 = is_transmit1_triggered() [L11492] COND TRUE \read(tmp___0) [L11493] t1_st = 0 VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, token=0] [L11506] RET activate_threads() VAL [E_1=1, E_M=2, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, token=0] [L11214] RET immediate_notify() VAL [E_1=1, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=0] [L11215] E_1 = 2 [L11216] m_pc = 1 [L11217] m_st = 2 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=0] [L11391] RET master() [L11399] COND TRUE t1_st == 0 [L11400] int tmp_ndt_2; [L11401] tmp_ndt_2 = __VERIFIER_nondet_int() [L11402] COND TRUE \read(tmp_ndt_2) [L11404] t1_st = 1 [L11405] CALL transmit1() [L11253] COND FALSE !(t1_pc == 0) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L11256] COND TRUE t1_pc == 1 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L11272] token += 1 [L11273] E_M = 1 VAL [E_1=2, E_M=1, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11274] CALL immediate_notify() VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11506] CALL activate_threads() VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11477] int tmp ; [L11478] int tmp___0 ; [L11482] CALL, EXPR is_master_triggered() [L11286] int __retres1 ; VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11289] COND TRUE m_pc == 1 VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11290] COND TRUE E_M == 1 [L11291] __retres1 = 1 VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, __retres1=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11301] return (__retres1); VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, \result=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11482] RET, EXPR is_master_triggered() [L11482] tmp = is_master_triggered() [L11484] COND TRUE \read(tmp) [L11485] m_st = 0 VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11490] CALL, EXPR is_transmit1_triggered() [L11305] int __retres1 ; VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11308] COND TRUE t1_pc == 1 VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11309] COND FALSE !(E_1 == 1) VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11318] __retres1 = 0 VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, __retres1=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11320] return (__retres1); VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, \result=0, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11490] RET, EXPR is_transmit1_triggered() [L11490] tmp___0 = is_transmit1_triggered() [L11492] COND FALSE !(\read(tmp___0)) VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11506] RET activate_threads() VAL [E_1=2, E_M=1, M_E=2, T1_E=2, \old(m_st)=2, \old(t1_st)=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11274] RET immediate_notify() VAL [E_1=2, E_M=1, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11275] E_M = 2 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=1, token=1] [L11266] t1_pc = 1 [L11267] t1_st = 2 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11405] RET transmit1() [L11378] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11350] int __retres1 ; VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11353] COND TRUE m_st == 0 [L11354] __retres1 = 1 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, __retres1=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11366] return (__retres1); VAL [E_1=2, E_M=2, M_E=2, T1_E=2, \result=1, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11378] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11378] tmp = exists_runnable_thread() [L11380] COND TRUE \read(tmp) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=0, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11385] COND TRUE m_st == 0 [L11386] int tmp_ndt_1; [L11387] tmp_ndt_1 = __VERIFIER_nondet_int() [L11388] COND TRUE \read(tmp_ndt_1) [L11390] m_st = 1 [L11391] CALL master() [L11195] int tmp_var = __VERIFIER_nondet_int(); [L11197] COND FALSE !(m_pc == 0) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=1] [L11200] COND TRUE m_pc == 1 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=1] [L11222] COND FALSE !(token != local + 1) VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=1] [L11227] COND TRUE tmp_var <= 5 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=1] [L11228] COND TRUE tmp_var >= 5 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=1] [L11233] COND TRUE tmp_var <= 5 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=1] [L11234] COND TRUE tmp_var >= 5 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=1] [L11235] COND TRUE tmp_var == 5 VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11236] CALL error() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=1] [L11173] reach_error() VAL [E_1=2, E_M=2, M_E=2, T1_E=2, a12=4, a15=1, a16=1, a20=5, a25=1, a27=1, a2=10, a9=18, a=1, b=2, c=3, d=4, e=5, f=6, local=0, m_i=1, m_pc=1, m_st=1, t1_i=1, t1_pc=1, t1_st=2, token=1] - UnprovableResult [Line: 11088]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2296 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 22.7s, OverallIterations: 18, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46007 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45953 mSDsluCounter, 181618 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111209 mSDsCounter, 190 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1857 IncrementalHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 190 mSolverCounterUnsat, 70409 mSDtfsCounter, 1857 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1780 GetRequests, 1696 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10841occurred in iteration=9, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 3736 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 3525 NumberOfCodeBlocks, 3525 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3490 ConstructedInterpolants, 0 QuantifiedInterpolants, 4525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5018 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 30 InterpolantComputations, 17 PerfectInterpolantSequences, 1569/1830 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:17:24,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8b76a-38b4-4949-9e7e-16a0d8fd44be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE