./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.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_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/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_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/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_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/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 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:09:54,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:09:54,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:09:54,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:09:54,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:09:54,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:09:54,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:09:54,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:09:54,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:09:54,263 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:09:54,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:09:54,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:09:54,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:09:54,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:09:54,265 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:09:54,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:09:54,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:09:54,265 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:09:54,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:09:54,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:09:54,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:09:54,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:09:54,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:09:54,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:09:54,266 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:09:54,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:09:54,268 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:09:54,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:09:54,268 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:09:54,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:09:54,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:09:54,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:09:54,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:09:54,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:09:54,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:09:54,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:09:54,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:09:54,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:09:54,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:09:54,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:09:54,270 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:09:54,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:09:54,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:09:54,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:09:54,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:09:54,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:09:54,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:09:54,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:09:54,272 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_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/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 -> 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c [2024-11-28 03:09:54,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:09:54,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:09:54,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:09:54,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:09:54,657 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:09:54,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2024-11-28 03:09:58,412 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/data/23f7cc4b2/52a30ff4111546feba509e8d75077229/FLAGb1c25ac4f [2024-11-28 03:09:58,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:09:58,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2024-11-28 03:09:58,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/data/23f7cc4b2/52a30ff4111546feba509e8d75077229/FLAGb1c25ac4f [2024-11-28 03:09:58,829 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/data/23f7cc4b2/52a30ff4111546feba509e8d75077229 [2024-11-28 03:09:58,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:09:58,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:09:58,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:09:58,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:09:58,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:09:58,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:58" (1/1) ... [2024-11-28 03:09:58,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a18471e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:58, skipping insertion in model container [2024-11-28 03:09:58,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:58" (1/1) ... [2024-11-28 03:09:58,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:09:59,181 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_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2024-11-28 03:09:59,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:09:59,337 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:09:59,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-11-28 03:09:59,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [261] [2024-11-28 03:09:59,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [329] [2024-11-28 03:09:59,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [433] [2024-11-28 03:09:59,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [442] [2024-11-28 03:09:59,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [543] [2024-11-28 03:09:59,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [578] [2024-11-28 03:09:59,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [944] [2024-11-28 03:09:59,403 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_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2024-11-28 03:09:59,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:09:59,490 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:09:59,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59 WrapperNode [2024-11-28 03:09:59,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:09:59,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:09:59,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:09:59,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:09:59,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,543 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 208 [2024-11-28 03:09:59,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:09:59,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:09:59,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:09:59,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:09:59,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,590 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 03:09:59,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,599 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,626 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:09:59,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:09:59,627 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:09:59,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:09:59,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (1/1) ... [2024-11-28 03:09:59,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:09:59,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:09:59,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:09:59,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:09:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:09:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 03:09:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 03:09:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 03:09:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 03:09:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 03:09:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 03:09:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 03:09:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 03:09:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 03:09:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 03:09:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-28 03:09:59,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-28 03:09:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:09:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 03:09:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 03:09:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:09:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:09:59,823 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:09:59,826 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:10:00,238 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-28 03:10:00,239 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:10:00,254 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:10:00,254 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 03:10:00,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:00 BoogieIcfgContainer [2024-11-28 03:10:00,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:10:00,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:10:00,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:10:00,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:10:00,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:58" (1/3) ... [2024-11-28 03:10:00,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80a4db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:00, skipping insertion in model container [2024-11-28 03:10:00,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:59" (2/3) ... [2024-11-28 03:10:00,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80a4db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:00, skipping insertion in model container [2024-11-28 03:10:00,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:00" (3/3) ... [2024-11-28 03:10:00,269 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2024-11-28 03:10:00,290 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:10:00,292 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product49.cil.c that has 8 procedures, 90 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 03:10:00,368 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:10:00,385 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;@729792fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:10:00,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:10:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:10:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:10:00,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:00,401 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:10:00,402 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:00,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:00,407 INFO L85 PathProgramCache]: Analyzing trace with hash -471279696, now seen corresponding path program 1 times [2024-11-28 03:10:00,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:00,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125460247] [2024-11-28 03:10:00,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:00,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:10:00,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:00,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125460247] [2024-11-28 03:10:00,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125460247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:00,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:00,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:00,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564473072] [2024-11-28 03:10:00,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:00,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:00,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:00,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:00,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:00,929 INFO L87 Difference]: Start difference. First operand has 90 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:00,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:00,969 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2024-11-28 03:10:00,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:00,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 03:10:00,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:00,982 INFO L225 Difference]: With dead ends: 159 [2024-11-28 03:10:00,982 INFO L226 Difference]: Without dead ends: 73 [2024-11-28 03:10:00,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:00,990 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:00,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-28 03:10:01,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-28 03:10:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2024-11-28 03:10:01,056 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 32 [2024-11-28 03:10:01,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:01,057 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2024-11-28 03:10:01,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:01,057 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2024-11-28 03:10:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 03:10:01,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:01,060 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:10:01,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:10:01,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:01,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash 992168255, now seen corresponding path program 1 times [2024-11-28 03:10:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:01,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744676464] [2024-11-28 03:10:01,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:10:01,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:01,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744676464] [2024-11-28 03:10:01,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744676464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:01,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:01,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:01,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920139806] [2024-11-28 03:10:01,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:01,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:01,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:01,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:01,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:01,299 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:10:01,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:01,323 INFO L93 Difference]: Finished difference Result 138 states and 181 transitions. [2024-11-28 03:10:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:01,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2024-11-28 03:10:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:01,326 INFO L225 Difference]: With dead ends: 138 [2024-11-28 03:10:01,326 INFO L226 Difference]: Without dead ends: 73 [2024-11-28 03:10:01,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:01,328 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:01,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-28 03:10:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-28 03:10:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:01,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2024-11-28 03:10:01,344 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 36 [2024-11-28 03:10:01,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:01,346 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-28 03:10:01,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:10:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2024-11-28 03:10:01,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:10:01,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:01,348 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:10:01,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:10:01,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:01,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:01,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1107613963, now seen corresponding path program 1 times [2024-11-28 03:10:01,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:01,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808701538] [2024-11-28 03:10:01,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:01,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:01,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:10:01,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:01,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808701538] [2024-11-28 03:10:01,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808701538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:01,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:01,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:01,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307019832] [2024-11-28 03:10:01,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:01,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:01,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:01,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:01,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:01,432 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:10:01,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:01,515 INFO L93 Difference]: Finished difference Result 184 states and 241 transitions. [2024-11-28 03:10:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:01,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-28 03:10:01,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:01,521 INFO L225 Difference]: With dead ends: 184 [2024-11-28 03:10:01,521 INFO L226 Difference]: Without dead ends: 119 [2024-11-28 03:10:01,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:01,527 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 73 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:01,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 172 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:01,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-28 03:10:01,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-28 03:10:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 90 states have (on average 1.3) internal successors, (117), 97 states have internal predecessors, (117), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 03:10:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 149 transitions. [2024-11-28 03:10:01,578 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 149 transitions. Word has length 44 [2024-11-28 03:10:01,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:01,579 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 149 transitions. [2024-11-28 03:10:01,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:10:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 149 transitions. [2024-11-28 03:10:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 03:10:01,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:01,581 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:10:01,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:10:01,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:01,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash -164041820, now seen corresponding path program 1 times [2024-11-28 03:10:01,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:01,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235717108] [2024-11-28 03:10:01,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:01,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:10:01,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:01,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235717108] [2024-11-28 03:10:01,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235717108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:01,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:01,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:10:01,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090210375] [2024-11-28 03:10:01,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:01,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:01,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:01,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:01,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:10:01,757 INFO L87 Difference]: Start difference. First operand 117 states and 149 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:01,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:01,808 INFO L93 Difference]: Finished difference Result 229 states and 298 transitions. [2024-11-28 03:10:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:01,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-11-28 03:10:01,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:01,810 INFO L225 Difference]: With dead ends: 229 [2024-11-28 03:10:01,811 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 03:10:01,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 03:10:01,813 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 354 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 03:10:01,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 354 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:01,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 03:10:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 03:10:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 93 states have (on average 1.2903225806451613) internal successors, (120), 100 states have internal predecessors, (120), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 03:10:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 152 transitions. [2024-11-28 03:10:01,834 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 152 transitions. Word has length 50 [2024-11-28 03:10:01,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:01,835 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 152 transitions. [2024-11-28 03:10:01,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions. [2024-11-28 03:10:01,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 03:10:01,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:01,837 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:10:01,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:10:01,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:01,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:01,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1852985562, now seen corresponding path program 1 times [2024-11-28 03:10:01,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:01,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465785011] [2024-11-28 03:10:01,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:01,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:02,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:10:02,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:02,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465785011] [2024-11-28 03:10:02,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465785011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:02,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:02,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:10:02,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884141656] [2024-11-28 03:10:02,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:02,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:10:02,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:02,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:10:02,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:10:02,036 INFO L87 Difference]: Start difference. First operand 120 states and 152 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:02,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:02,095 INFO L93 Difference]: Finished difference Result 234 states and 307 transitions. [2024-11-28 03:10:02,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:10:02,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-11-28 03:10:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:02,099 INFO L225 Difference]: With dead ends: 234 [2024-11-28 03:10:02,101 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:10:02,102 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 03:10:02,103 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:02,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:02,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:10:02,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-28 03:10:02,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 102 states have internal predecessors, (122), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 03:10:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 154 transitions. [2024-11-28 03:10:02,135 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 154 transitions. Word has length 50 [2024-11-28 03:10:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:02,135 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 154 transitions. [2024-11-28 03:10:02,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 154 transitions. [2024-11-28 03:10:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 03:10:02,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:02,140 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:10:02,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:10:02,142 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:02,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:02,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1430283736, now seen corresponding path program 1 times [2024-11-28 03:10:02,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:02,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419356572] [2024-11-28 03:10:02,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:02,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:10:02,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:02,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419356572] [2024-11-28 03:10:02,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419356572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:02,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:02,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:10:02,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484484295] [2024-11-28 03:10:02,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:02,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:10:02,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:02,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:10:02,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:10:02,311 INFO L87 Difference]: Start difference. First operand 122 states and 154 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:02,542 INFO L93 Difference]: Finished difference Result 396 states and 518 transitions. [2024-11-28 03:10:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:10:02,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-11-28 03:10:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:02,549 INFO L225 Difference]: With dead ends: 396 [2024-11-28 03:10:02,549 INFO L226 Difference]: Without dead ends: 282 [2024-11-28 03:10:02,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 03:10:02,551 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 123 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:02,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 306 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:10:02,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-28 03:10:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 273. [2024-11-28 03:10:02,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 210 states have (on average 1.2714285714285714) internal successors, (267), 223 states have internal predecessors, (267), 33 states have call successors, (33), 28 states have call predecessors, (33), 29 states have return successors, (51), 34 states have call predecessors, (51), 33 states have call successors, (51) [2024-11-28 03:10:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 351 transitions. [2024-11-28 03:10:02,639 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 351 transitions. Word has length 50 [2024-11-28 03:10:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:02,642 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 351 transitions. [2024-11-28 03:10:02,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:02,642 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 351 transitions. [2024-11-28 03:10:02,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 03:10:02,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:02,649 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:10:02,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:10:02,649 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:02,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:02,650 INFO L85 PathProgramCache]: Analyzing trace with hash 786200518, now seen corresponding path program 1 times [2024-11-28 03:10:02,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:02,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716899971] [2024-11-28 03:10:02,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:02,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:02,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:10:02,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:02,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716899971] [2024-11-28 03:10:02,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716899971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:02,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:02,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:10:02,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59919607] [2024-11-28 03:10:02,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:02,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:10:02,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:02,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:10:02,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:02,855 INFO L87 Difference]: Start difference. First operand 273 states and 351 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:10:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:03,317 INFO L93 Difference]: Finished difference Result 570 states and 743 transitions. [2024-11-28 03:10:03,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:10:03,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2024-11-28 03:10:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:03,324 INFO L225 Difference]: With dead ends: 570 [2024-11-28 03:10:03,324 INFO L226 Difference]: Without dead ends: 305 [2024-11-28 03:10:03,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:10:03,327 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 123 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:03,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 375 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:10:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-28 03:10:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 303. [2024-11-28 03:10:03,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 233 states have (on average 1.240343347639485) internal successors, (289), 246 states have internal predecessors, (289), 36 states have call successors, (36), 28 states have call predecessors, (36), 33 states have return successors, (61), 38 states have call predecessors, (61), 36 states have call successors, (61) [2024-11-28 03:10:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 386 transitions. [2024-11-28 03:10:03,374 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 386 transitions. Word has length 52 [2024-11-28 03:10:03,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:03,375 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 386 transitions. [2024-11-28 03:10:03,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:10:03,375 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 386 transitions. [2024-11-28 03:10:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 03:10:03,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:03,380 INFO L218 NwaCegarLoop]: trace histogram [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 03:10:03,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:10:03,381 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:03,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:03,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1541212302, now seen corresponding path program 1 times [2024-11-28 03:10:03,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:03,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363586918] [2024-11-28 03:10:03,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:03,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:10:03,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:03,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363586918] [2024-11-28 03:10:03,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363586918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:03,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:03,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:10:03,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937850973] [2024-11-28 03:10:03,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:03,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:10:03,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:03,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:10:03,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:10:03,753 INFO L87 Difference]: Start difference. First operand 303 states and 386 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:10:04,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:04,402 INFO L93 Difference]: Finished difference Result 861 states and 1145 transitions. [2024-11-28 03:10:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:10:04,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2024-11-28 03:10:04,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:04,412 INFO L225 Difference]: With dead ends: 861 [2024-11-28 03:10:04,412 INFO L226 Difference]: Without dead ends: 615 [2024-11-28 03:10:04,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:10:04,415 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 294 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:04,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 513 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:10:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-28 03:10:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 545. [2024-11-28 03:10:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 415 states have (on average 1.2265060240963856) internal successors, (509), 441 states have internal predecessors, (509), 67 states have call successors, (67), 50 states have call predecessors, (67), 62 states have return successors, (113), 71 states have call predecessors, (113), 67 states have call successors, (113) [2024-11-28 03:10:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 689 transitions. [2024-11-28 03:10:04,535 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 689 transitions. Word has length 54 [2024-11-28 03:10:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:04,537 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 689 transitions. [2024-11-28 03:10:04,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:10:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 689 transitions. [2024-11-28 03:10:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:10:04,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:04,540 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:04,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:10:04,540 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:04,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:04,545 INFO L85 PathProgramCache]: Analyzing trace with hash 432077936, now seen corresponding path program 1 times [2024-11-28 03:10:04,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:04,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998673763] [2024-11-28 03:10:04,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 03:10:04,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:04,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998673763] [2024-11-28 03:10:04,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998673763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:04,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518476184] [2024-11-28 03:10:04,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:04,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:04,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:04,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:04,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:10:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:05,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:10:05,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:10:05,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 03:10:05,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518476184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:10:05,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:10:05,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-28 03:10:05,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968688485] [2024-11-28 03:10:05,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:05,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:10:05,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:05,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:10:05,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:10:05,773 INFO L87 Difference]: Start difference. First operand 545 states and 689 transitions. Second operand has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 13 states have internal predecessors, (137), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:10:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:06,578 INFO L93 Difference]: Finished difference Result 1213 states and 1601 transitions. [2024-11-28 03:10:06,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:10:06,579 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 13 states have internal predecessors, (137), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) Word has length 94 [2024-11-28 03:10:06,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:06,584 INFO L225 Difference]: With dead ends: 1213 [2024-11-28 03:10:06,584 INFO L226 Difference]: Without dead ends: 723 [2024-11-28 03:10:06,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 185 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:10:06,588 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 284 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:06,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 983 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:10:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-28 03:10:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 627. [2024-11-28 03:10:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 470 states have (on average 1.2234042553191489) internal successors, (575), 505 states have internal predecessors, (575), 80 states have call successors, (80), 68 states have call predecessors, (80), 76 states have return successors, (116), 78 states have call predecessors, (116), 80 states have call successors, (116) [2024-11-28 03:10:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 771 transitions. [2024-11-28 03:10:06,685 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 771 transitions. Word has length 94 [2024-11-28 03:10:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:06,686 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 771 transitions. [2024-11-28 03:10:06,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 13 states have internal predecessors, (137), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:10:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 771 transitions. [2024-11-28 03:10:06,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 03:10:06,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:06,690 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 03:10:06,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:10:06,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:06,895 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:06,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash 386115154, now seen corresponding path program 1 times [2024-11-28 03:10:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:06,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633889416] [2024-11-28 03:10:06,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:06,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-28 03:10:07,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:07,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633889416] [2024-11-28 03:10:07,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633889416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:07,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:07,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:10:07,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580645125] [2024-11-28 03:10:07,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:07,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:07,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:07,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:07,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:10:07,156 INFO L87 Difference]: Start difference. First operand 627 states and 771 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 03:10:07,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:07,286 INFO L93 Difference]: Finished difference Result 1208 states and 1502 transitions. [2024-11-28 03:10:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:07,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 164 [2024-11-28 03:10:07,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:07,293 INFO L225 Difference]: With dead ends: 1208 [2024-11-28 03:10:07,293 INFO L226 Difference]: Without dead ends: 636 [2024-11-28 03:10:07,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 03:10:07,297 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:07,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-28 03:10:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2024-11-28 03:10:07,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 479 states have (on average 1.2192066805845512) internal successors, (584), 514 states have internal predecessors, (584), 80 states have call successors, (80), 68 states have call predecessors, (80), 76 states have return successors, (116), 78 states have call predecessors, (116), 80 states have call successors, (116) [2024-11-28 03:10:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 780 transitions. [2024-11-28 03:10:07,427 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 780 transitions. Word has length 164 [2024-11-28 03:10:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:07,428 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 780 transitions. [2024-11-28 03:10:07,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 03:10:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 780 transitions. [2024-11-28 03:10:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 03:10:07,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:07,433 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 03:10:07,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:10:07,434 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:07,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:07,435 INFO L85 PathProgramCache]: Analyzing trace with hash -634419148, now seen corresponding path program 1 times [2024-11-28 03:10:07,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:07,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250203654] [2024-11-28 03:10:07,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:07,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 84 proven. 31 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 03:10:07,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:07,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250203654] [2024-11-28 03:10:07,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250203654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:07,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104128525] [2024-11-28 03:10:07,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:07,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:07,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:07,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:07,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:10:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:08,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:10:08,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 03:10:08,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:09,341 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 74 proven. 43 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-28 03:10:09,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104128525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:10:09,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:10:09,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-28 03:10:09,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112487413] [2024-11-28 03:10:09,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:09,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 03:10:09,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:09,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 03:10:09,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:10:09,345 INFO L87 Difference]: Start difference. First operand 636 states and 780 transitions. Second operand has 25 states, 25 states have (on average 8.48) internal successors, (212), 24 states have internal predecessors, (212), 11 states have call successors, (28), 6 states have call predecessors, (28), 10 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2024-11-28 03:10:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:10,497 INFO L93 Difference]: Finished difference Result 1392 states and 1775 transitions. [2024-11-28 03:10:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:10:10,498 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 24 states have internal predecessors, (212), 11 states have call successors, (28), 6 states have call predecessors, (28), 10 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) Word has length 168 [2024-11-28 03:10:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:10,510 INFO L225 Difference]: With dead ends: 1392 [2024-11-28 03:10:10,510 INFO L226 Difference]: Without dead ends: 764 [2024-11-28 03:10:10,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 323 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:10:10,516 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 510 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:10,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 712 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:10:10,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-28 03:10:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 694. [2024-11-28 03:10:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 524 states have (on average 1.1946564885496183) internal successors, (626), 556 states have internal predecessors, (626), 91 states have call successors, (91), 79 states have call predecessors, (91), 78 states have return successors, (114), 81 states have call predecessors, (114), 91 states have call successors, (114) [2024-11-28 03:10:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 831 transitions. [2024-11-28 03:10:10,655 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 831 transitions. Word has length 168 [2024-11-28 03:10:10,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:10,655 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 831 transitions. [2024-11-28 03:10:10,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 24 states have internal predecessors, (212), 11 states have call successors, (28), 6 states have call predecessors, (28), 10 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2024-11-28 03:10:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 831 transitions. [2024-11-28 03:10:10,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 03:10:10,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:10,662 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:10,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:10:10,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:10:10,863 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:10,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:10,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2146722730, now seen corresponding path program 1 times [2024-11-28 03:10:10,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:10,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832642778] [2024-11-28 03:10:10,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:10,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 85 proven. 65 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-28 03:10:11,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832642778] [2024-11-28 03:10:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832642778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300585050] [2024-11-28 03:10:11,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:11,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:11,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:11,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:11,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:10:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:11,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:10:11,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 172 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 03:10:11,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 94 proven. 55 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-28 03:10:12,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300585050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:10:12,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:10:12,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-11-28 03:10:12,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962724923] [2024-11-28 03:10:12,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:12,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:10:12,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:12,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:10:12,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:10:12,498 INFO L87 Difference]: Start difference. First operand 694 states and 831 transitions. Second operand has 23 states, 23 states have (on average 10.0) internal successors, (230), 20 states have internal predecessors, (230), 9 states have call successors, (33), 5 states have call predecessors, (33), 14 states have return successors, (33), 12 states have call predecessors, (33), 9 states have call successors, (33) [2024-11-28 03:10:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:13,710 INFO L93 Difference]: Finished difference Result 1364 states and 1656 transitions. [2024-11-28 03:10:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:10:13,711 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 20 states have internal predecessors, (230), 9 states have call successors, (33), 5 states have call predecessors, (33), 14 states have return successors, (33), 12 states have call predecessors, (33), 9 states have call successors, (33) Word has length 180 [2024-11-28 03:10:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:13,718 INFO L225 Difference]: With dead ends: 1364 [2024-11-28 03:10:13,718 INFO L226 Difference]: Without dead ends: 725 [2024-11-28 03:10:13,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 356 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 03:10:13,722 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 434 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:13,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 970 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:10:13,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-28 03:10:13,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 709. [2024-11-28 03:10:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 534 states have (on average 1.1835205992509363) internal successors, (632), 566 states have internal predecessors, (632), 91 states have call successors, (91), 84 states have call predecessors, (91), 83 states have return successors, (114), 81 states have call predecessors, (114), 91 states have call successors, (114) [2024-11-28 03:10:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 837 transitions. [2024-11-28 03:10:13,841 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 837 transitions. Word has length 180 [2024-11-28 03:10:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:13,842 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 837 transitions. [2024-11-28 03:10:13,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 20 states have internal predecessors, (230), 9 states have call successors, (33), 5 states have call predecessors, (33), 14 states have return successors, (33), 12 states have call predecessors, (33), 9 states have call successors, (33) [2024-11-28 03:10:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 837 transitions. [2024-11-28 03:10:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-28 03:10:13,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:13,848 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:13,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:10:14,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:10:14,053 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:14,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:14,054 INFO L85 PathProgramCache]: Analyzing trace with hash -415589289, now seen corresponding path program 1 times [2024-11-28 03:10:14,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:14,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529665239] [2024-11-28 03:10:14,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:14,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 87 proven. 57 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-28 03:10:15,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:15,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529665239] [2024-11-28 03:10:15,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529665239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:15,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518149253] [2024-11-28 03:10:15,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:15,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:15,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:15,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:15,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:10:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:15,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:10:15,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 118 proven. 25 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:10:15,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 91 proven. 46 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-28 03:10:16,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518149253] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:10:16,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:10:16,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 13] total 22 [2024-11-28 03:10:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061994666] [2024-11-28 03:10:16,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:16,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:10:16,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:16,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:10:16,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:10:16,661 INFO L87 Difference]: Start difference. First operand 709 states and 837 transitions. Second operand has 22 states, 22 states have (on average 10.545454545454545) internal successors, (232), 21 states have internal predecessors, (232), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2024-11-28 03:10:17,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:17,900 INFO L93 Difference]: Finished difference Result 1367 states and 1642 transitions. [2024-11-28 03:10:17,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:10:17,901 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.545454545454545) internal successors, (232), 21 states have internal predecessors, (232), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) Word has length 181 [2024-11-28 03:10:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:17,911 INFO L225 Difference]: With dead ends: 1367 [2024-11-28 03:10:17,912 INFO L226 Difference]: Without dead ends: 938 [2024-11-28 03:10:17,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 356 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 03:10:17,917 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 608 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:17,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 734 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:10:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-28 03:10:18,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 871. [2024-11-28 03:10:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 657 states have (on average 1.182648401826484) internal successors, (777), 694 states have internal predecessors, (777), 112 states have call successors, (112), 103 states have call predecessors, (112), 101 states have return successors, (137), 101 states have call predecessors, (137), 112 states have call successors, (137) [2024-11-28 03:10:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1026 transitions. [2024-11-28 03:10:18,039 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1026 transitions. Word has length 181 [2024-11-28 03:10:18,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:18,039 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1026 transitions. [2024-11-28 03:10:18,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.545454545454545) internal successors, (232), 21 states have internal predecessors, (232), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2024-11-28 03:10:18,040 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1026 transitions. [2024-11-28 03:10:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 03:10:18,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:18,047 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 03:10:18,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:10:18,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:10:18,248 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:18,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1975429950, now seen corresponding path program 1 times [2024-11-28 03:10:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:18,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791492061] [2024-11-28 03:10:18,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 140 proven. 75 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-28 03:10:19,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:19,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791492061] [2024-11-28 03:10:19,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791492061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:19,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546597814] [2024-11-28 03:10:19,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:19,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:19,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:19,195 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:19,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:10:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:19,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:10:19,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 134 proven. 87 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-28 03:10:19,910 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 87 proven. 136 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-28 03:10:21,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546597814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:10:21,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:10:21,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 16] total 27 [2024-11-28 03:10:21,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459666426] [2024-11-28 03:10:21,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:10:21,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 03:10:21,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:21,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 03:10:21,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:10:21,327 INFO L87 Difference]: Start difference. First operand 871 states and 1026 transitions. Second operand has 27 states, 27 states have (on average 10.62962962962963) internal successors, (287), 26 states have internal predecessors, (287), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2024-11-28 03:10:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:23,300 INFO L93 Difference]: Finished difference Result 1473 states and 1761 transitions. [2024-11-28 03:10:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 03:10:23,301 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.62962962962963) internal successors, (287), 26 states have internal predecessors, (287), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) Word has length 230 [2024-11-28 03:10:23,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:23,305 INFO L225 Difference]: With dead ends: 1473 [2024-11-28 03:10:23,307 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:10:23,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 448 SyntacticMatches, 9 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=787, Invalid=2519, Unknown=0, NotChecked=0, Total=3306 [2024-11-28 03:10:23,314 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 502 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:23,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1363 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:10:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:10:23,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:10:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:10:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:10:23,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 230 [2024-11-28 03:10:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:23,317 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:10:23,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.62962962962963) internal successors, (287), 26 states have internal predecessors, (287), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2024-11-28 03:10:23,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:10:23,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:10:23,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:10:23,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:10:23,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:10:23,531 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:23,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:10:32,992 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:10:33,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:33 BoogieIcfgContainer [2024-11-28 03:10:33,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:10:33,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:10:33,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:10:33,011 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:10:33,012 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:00" (3/4) ... [2024-11-28 03:10:33,015 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:10:33,025 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 03:10:33,025 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 03:10:33,025 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 03:10:33,025 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 03:10:33,026 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 03:10:33,026 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 03:10:33,026 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-28 03:10:33,037 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-28 03:10:33,038 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 03:10:33,038 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:10:33,039 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:10:33,039 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:10:33,194 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:10:33,195 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:10:33,195 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:10:33,197 INFO L158 Benchmark]: Toolchain (without parser) took 34361.27ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 91.9MB in the beginning and 97.2MB in the end (delta: -5.3MB). Peak memory consumption was 152.8MB. Max. memory is 16.1GB. [2024-11-28 03:10:33,197 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:33,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.33ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.0MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:10:33,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.15ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 70.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:10:33,200 INFO L158 Benchmark]: Boogie Preprocessor took 82.12ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:33,200 INFO L158 Benchmark]: RCFGBuilder took 628.34ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 52.5MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:10:33,200 INFO L158 Benchmark]: TraceAbstraction took 32752.28ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 52.0MB in the beginning and 103.1MB in the end (delta: -51.1MB). Peak memory consumption was 129.8MB. Max. memory is 16.1GB. [2024-11-28 03:10:33,201 INFO L158 Benchmark]: Witness Printer took 183.81ms. Allocated memory is still 276.8MB. Free memory was 103.1MB in the beginning and 97.2MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:10:33,204 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.33ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 73.0MB in the end (delta: 18.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.15ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 70.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.12ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 628.34ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 52.5MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 32752.28ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 52.0MB in the beginning and 103.1MB in the end (delta: -51.1MB). Peak memory consumption was 129.8MB. Max. memory is 16.1GB. * Witness Printer took 183.81ms. Allocated memory is still 276.8MB. Free memory was 103.1MB in the beginning and 97.2MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [261] - GenericResultAtLocation [Line: 329]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [329] - GenericResultAtLocation [Line: 433]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [433] - GenericResultAtLocation [Line: 442]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [442] - GenericResultAtLocation [Line: 543]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [543] - GenericResultAtLocation [Line: 578]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [578] - GenericResultAtLocation [Line: 944]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [944] * 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 - PositiveResult [Line: 438]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.2s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3066 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3035 mSDsluCounter, 7373 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5730 mSDsCounter, 931 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4091 IncrementalHoareTripleChecker+Invalid, 5022 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 931 mSolverCounterUnsat, 1643 mSDtfsCounter, 4091 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1941 GetRequests, 1693 SyntacticMatches, 25 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=13, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 332 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 2238 NumberOfCodeBlocks, 2238 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3067 ConstructedInterpolants, 0 QuantifiedInterpolants, 7496 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2544 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2751/3417 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 03:10:33,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81c2dccf-98cc-45c2-8a5d-8e26bcf6b987/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 Result: TRUE