./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.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_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/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_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/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_db8463f8-17ae-445b-8000-b2dc4af0b3ec/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 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:22:46,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:22:46,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:22:46,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:22:46,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:22:46,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:22:46,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:22:46,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:22:46,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:22:46,633 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:22:46,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:22:46,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:22:46,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:22:46,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:22:46,634 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:22:46,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:22:46,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:22:46,635 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:22:46,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:22:46,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:22:46,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:22:46,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:22:46,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:22:46,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:22:46,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:22:46,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:22:46,636 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:22:46,636 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:22:46,636 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:22:46,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:46,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:46,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:46,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:46,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:22:46,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:46,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:46,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:46,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:22:46,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:22:46,639 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_db8463f8-17ae-445b-8000-b2dc4af0b3ec/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 -> 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b [2024-11-27 20:22:46,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:22:46,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:22:46,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:22:46,957 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:22:46,957 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:22:46,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-11-27 20:22:49,976 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/data/3c49b9e04/6b1b28d1697c467a98e3f89e04069d02/FLAG19f9c5f9e [2024-11-27 20:22:50,407 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:22:50,411 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-11-27 20:22:50,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/data/3c49b9e04/6b1b28d1697c467a98e3f89e04069d02/FLAG19f9c5f9e [2024-11-27 20:22:50,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/data/3c49b9e04/6b1b28d1697c467a98e3f89e04069d02 [2024-11-27 20:22:50,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:22:50,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:22:50,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:50,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:22:50,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:22:50,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:50" (1/1) ... [2024-11-27 20:22:50,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb8196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:50, skipping insertion in model container [2024-11-27 20:22:50,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:50" (1/1) ... [2024-11-27 20:22:50,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:22:50,832 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_db8463f8-17ae-445b-8000-b2dc4af0b3ec/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c[9626,9639] [2024-11-27 20:22:50,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:50,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:22:50,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-11-27 20:22:50,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] [2024-11-27 20:22:50,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] [2024-11-27 20:22:50,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] [2024-11-27 20:22:50,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] [2024-11-27 20:22:50,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] [2024-11-27 20:22:50,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] [2024-11-27 20:22:50,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] [2024-11-27 20:22:50,946 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_db8463f8-17ae-445b-8000-b2dc4af0b3ec/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c[9626,9639] [2024-11-27 20:22:51,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:51,048 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:22:51,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51 WrapperNode [2024-11-27 20:22:51,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:51,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:51,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:22:51,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:22:51,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,094 INFO L138 Inliner]: procedures = 61, calls = 110, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 248 [2024-11-27 20:22:51,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:51,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:22:51,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:22:51,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:22:51,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,130 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]. [2024-11-27 20:22:51,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,137 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:22:51,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:22:51,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:22:51,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:22:51,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (1/1) ... [2024-11-27 20:22:51,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:51,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:51,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:22:51,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:22:51,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:22:51,228 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-27 20:22:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-27 20:22:51,228 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-27 20:22:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-27 20:22:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-27 20:22:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-27 20:22:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:22:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:22:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-27 20:22:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-27 20:22:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-27 20:22:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-27 20:22:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-27 20:22:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-27 20:22:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-27 20:22:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-27 20:22:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-27 20:22:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-27 20:22:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:22:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-27 20:22:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-27 20:22:51,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:22:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:22:51,323 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:22:51,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:22:51,657 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-27 20:22:51,657 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:22:51,674 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:22:51,675 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 20:22:51,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:51 BoogieIcfgContainer [2024-11-27 20:22:51,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:22:51,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:22:51,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:22:51,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:22:51,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:22:50" (1/3) ... [2024-11-27 20:22:51,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd026c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:22:51, skipping insertion in model container [2024-11-27 20:22:51,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:51" (2/3) ... [2024-11-27 20:22:51,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd026c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:22:51, skipping insertion in model container [2024-11-27 20:22:51,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:51" (3/3) ... [2024-11-27 20:22:51,688 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2024-11-27 20:22:51,708 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:22:51,710 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product64.cil.c that has 11 procedures, 116 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-27 20:22:51,766 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:22:51,782 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;@6e602d1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:22:51,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:22:51,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 96 states have internal predecessors, (116), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 20:22:51,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 20:22:51,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:51,799 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] [2024-11-27 20:22:51,799 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:51,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1215646702, now seen corresponding path program 1 times [2024-11-27 20:22:51,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:51,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001697047] [2024-11-27 20:22:51,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:51,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:51,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:51,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001697047] [2024-11-27 20:22:51,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001697047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:51,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:52,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:22:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83134853] [2024-11-27 20:22:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:52,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:22:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:52,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:22:52,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:22:52,041 INFO L87 Difference]: Start difference. First operand has 116 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 96 states have internal predecessors, (116), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 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) [2024-11-27 20:22:52,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:52,103 INFO L93 Difference]: Finished difference Result 223 states and 302 transitions. [2024-11-27 20:22:52,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:22:52,105 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 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 [2024-11-27 20:22:52,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:52,120 INFO L225 Difference]: With dead ends: 223 [2024-11-27 20:22:52,120 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 20:22:52,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:22:52,131 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:52,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:22:52,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 20:22:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-27 20:22:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 88 states have internal predecessors, (102), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 20:22:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 139 transitions. [2024-11-27 20:22:52,198 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 139 transitions. Word has length 32 [2024-11-27 20:22:52,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:52,200 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 139 transitions. [2024-11-27 20:22:52,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 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) [2024-11-27 20:22:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 139 transitions. [2024-11-27 20:22:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 20:22:52,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:52,205 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] [2024-11-27 20:22:52,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:22:52,206 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:52,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:52,209 INFO L85 PathProgramCache]: Analyzing trace with hash 813606184, now seen corresponding path program 1 times [2024-11-27 20:22:52,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908643586] [2024-11-27 20:22:52,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:52,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:52,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908643586] [2024-11-27 20:22:52,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908643586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:52,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:52,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:22:52,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157764784] [2024-11-27 20:22:52,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:52,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:22:52,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:52,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:22:52,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:22:52,431 INFO L87 Difference]: Start difference. First operand 107 states and 139 transitions. 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) [2024-11-27 20:22:52,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:52,464 INFO L93 Difference]: Finished difference Result 176 states and 228 transitions. [2024-11-27 20:22:52,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:22:52,465 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 [2024-11-27 20:22:52,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:52,466 INFO L225 Difference]: With dead ends: 176 [2024-11-27 20:22:52,467 INFO L226 Difference]: Without dead ends: 99 [2024-11-27 20:22:52,467 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 [2024-11-27 20:22:52,468 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 17 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 233 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 [2024-11-27 20:22:52,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 233 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:22:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-27 20:22:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-27 20:22:52,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 83 states have internal predecessors, (96), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:22:52,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2024-11-27 20:22:52,486 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 32 [2024-11-27 20:22:52,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:52,486 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2024-11-27 20:22:52,487 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) [2024-11-27 20:22:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2024-11-27 20:22:52,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:22:52,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:52,488 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] [2024-11-27 20:22:52,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:22:52,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:52,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash -338788852, now seen corresponding path program 1 times [2024-11-27 20:22:52,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:52,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360895057] [2024-11-27 20:22:52,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:52,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:52,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:52,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360895057] [2024-11-27 20:22:52,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360895057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:52,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:52,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:22:52,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286808461] [2024-11-27 20:22:52,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:52,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:22:52,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:52,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:22:52,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:22:52,710 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-11-27 20:22:53,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:53,056 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2024-11-27 20:22:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:22:53,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 37 [2024-11-27 20:22:53,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:53,063 INFO L225 Difference]: With dead ends: 325 [2024-11-27 20:22:53,063 INFO L226 Difference]: Without dead ends: 234 [2024-11-27 20:22:53,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:22:53,068 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 221 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:53,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 531 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:22:53,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-27 20:22:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 228. [2024-11-27 20:22:53,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 166 states have (on average 1.3433734939759037) internal successors, (223), 188 states have internal predecessors, (223), 38 states have call successors, (38), 23 states have call predecessors, (38), 23 states have return successors, (39), 26 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:22:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 300 transitions. [2024-11-27 20:22:53,137 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 300 transitions. Word has length 37 [2024-11-27 20:22:53,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:53,137 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 300 transitions. [2024-11-27 20:22:53,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-11-27 20:22:53,138 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 300 transitions. [2024-11-27 20:22:53,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 20:22:53,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:53,140 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] [2024-11-27 20:22:53,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:22:53,143 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:53,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:53,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1994329065, now seen corresponding path program 1 times [2024-11-27 20:22:53,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:53,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790640943] [2024-11-27 20:22:53,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:53,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:22:53,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:53,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790640943] [2024-11-27 20:22:53,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790640943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:53,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:53,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:22:53,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805502233] [2024-11-27 20:22:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:53,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:22:53,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:53,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:22:53,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:22:53,361 INFO L87 Difference]: Start difference. First operand 228 states and 300 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:22:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:53,608 INFO L93 Difference]: Finished difference Result 548 states and 735 transitions. [2024-11-27 20:22:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:22:53,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-27 20:22:53,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:53,616 INFO L225 Difference]: With dead ends: 548 [2024-11-27 20:22:53,616 INFO L226 Difference]: Without dead ends: 328 [2024-11-27 20:22:53,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:22:53,618 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 87 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:53,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 527 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:22:53,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-27 20:22:53,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 326. [2024-11-27 20:22:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 240 states have (on average 1.275) internal successors, (306), 261 states have internal predecessors, (306), 47 states have call successors, (47), 38 states have call predecessors, (47), 38 states have return successors, (61), 42 states have call predecessors, (61), 47 states have call successors, (61) [2024-11-27 20:22:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 414 transitions. [2024-11-27 20:22:53,687 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 414 transitions. Word has length 40 [2024-11-27 20:22:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:53,689 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 414 transitions. [2024-11-27 20:22:53,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:22:53,689 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 414 transitions. [2024-11-27 20:22:53,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 20:22:53,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:53,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:53,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:22:53,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:53,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1224833975, now seen corresponding path program 1 times [2024-11-27 20:22:53,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:53,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281961560] [2024-11-27 20:22:53,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:53,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:53,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:53,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281961560] [2024-11-27 20:22:53,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281961560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:53,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:53,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:22:53,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525736693] [2024-11-27 20:22:53,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:53,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:22:53,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:53,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:22:53,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:53,855 INFO L87 Difference]: Start difference. First operand 326 states and 414 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:22:53,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:53,904 INFO L93 Difference]: Finished difference Result 648 states and 852 transitions. [2024-11-27 20:22:53,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:22:53,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-27 20:22:53,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:53,908 INFO L225 Difference]: With dead ends: 648 [2024-11-27 20:22:53,908 INFO L226 Difference]: Without dead ends: 330 [2024-11-27 20:22:53,910 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 [2024-11-27 20:22:53,910 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 372 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 [2024-11-27 20:22:53,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 372 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:22:53,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-27 20:22:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-27 20:22:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 244 states have (on average 1.2704918032786885) internal successors, (310), 265 states have internal predecessors, (310), 47 states have call successors, (47), 38 states have call predecessors, (47), 38 states have return successors, (61), 42 states have call predecessors, (61), 47 states have call successors, (61) [2024-11-27 20:22:53,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 418 transitions. [2024-11-27 20:22:53,969 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 418 transitions. Word has length 64 [2024-11-27 20:22:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:53,972 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 418 transitions. [2024-11-27 20:22:53,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:22:53,972 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 418 transitions. [2024-11-27 20:22:53,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 20:22:53,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:53,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:53,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:22:53,979 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:53,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:53,979 INFO L85 PathProgramCache]: Analyzing trace with hash -161369419, now seen corresponding path program 1 times [2024-11-27 20:22:53,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:53,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473270300] [2024-11-27 20:22:53,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:53,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:54,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:54,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:54,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473270300] [2024-11-27 20:22:54,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473270300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:54,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:54,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:22:54,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529176718] [2024-11-27 20:22:54,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:54,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:22:54,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:54,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:22:54,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:22:54,103 INFO L87 Difference]: Start difference. First operand 330 states and 418 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:22:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:54,176 INFO L93 Difference]: Finished difference Result 658 states and 862 transitions. [2024-11-27 20:22:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:22:54,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-27 20:22:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:54,185 INFO L225 Difference]: With dead ends: 658 [2024-11-27 20:22:54,186 INFO L226 Difference]: Without dead ends: 336 [2024-11-27 20:22:54,187 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 [2024-11-27 20:22:54,189 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 494 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 [2024-11-27 20:22:54,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 494 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:22:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-27 20:22:54,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2024-11-27 20:22:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 250 states have (on average 1.264) internal successors, (316), 271 states have internal predecessors, (316), 47 states have call successors, (47), 38 states have call predecessors, (47), 38 states have return successors, (61), 42 states have call predecessors, (61), 47 states have call successors, (61) [2024-11-27 20:22:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 424 transitions. [2024-11-27 20:22:54,249 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 424 transitions. Word has length 64 [2024-11-27 20:22:54,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:54,250 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 424 transitions. [2024-11-27 20:22:54,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:22:54,250 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 424 transitions. [2024-11-27 20:22:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 20:22:54,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:54,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:54,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:22:54,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:54,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:54,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1926433849, now seen corresponding path program 1 times [2024-11-27 20:22:54,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:54,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699061621] [2024-11-27 20:22:54,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:54,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:54,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:54,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699061621] [2024-11-27 20:22:54,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699061621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:54,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:54,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:22:54,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783823922] [2024-11-27 20:22:54,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:54,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:22:54,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:54,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:22:54,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:54,470 INFO L87 Difference]: Start difference. First operand 336 states and 424 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 20:22:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:54,731 INFO L93 Difference]: Finished difference Result 1107 states and 1446 transitions. [2024-11-27 20:22:54,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:22:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 64 [2024-11-27 20:22:54,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:54,738 INFO L225 Difference]: With dead ends: 1107 [2024-11-27 20:22:54,738 INFO L226 Difference]: Without dead ends: 779 [2024-11-27 20:22:54,740 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 [2024-11-27 20:22:54,743 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 158 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:54,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 417 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:22:54,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-27 20:22:54,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 765. [2024-11-27 20:22:54,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 567 states have (on average 1.2433862433862435) internal successors, (705), 607 states have internal predecessors, (705), 108 states have call successors, (108), 87 states have call predecessors, (108), 89 states have return successors, (165), 100 states have call predecessors, (165), 108 states have call successors, (165) [2024-11-27 20:22:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 978 transitions. [2024-11-27 20:22:54,912 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 978 transitions. Word has length 64 [2024-11-27 20:22:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:54,912 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 978 transitions. [2024-11-27 20:22:54,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 20:22:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 978 transitions. [2024-11-27 20:22:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 20:22:54,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:54,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:54,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:22:54,918 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:54,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1038279777, now seen corresponding path program 1 times [2024-11-27 20:22:54,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:54,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229633494] [2024-11-27 20:22:54,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:54,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:55,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:55,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229633494] [2024-11-27 20:22:55,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229633494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:55,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:55,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:22:55,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954226446] [2024-11-27 20:22:55,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:55,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:22:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:55,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:22:55,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:22:55,352 INFO L87 Difference]: Start difference. First operand 765 states and 978 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-27 20:22:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:56,369 INFO L93 Difference]: Finished difference Result 2205 states and 2915 transitions. [2024-11-27 20:22:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:22:56,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 68 [2024-11-27 20:22:56,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:56,382 INFO L225 Difference]: With dead ends: 2205 [2024-11-27 20:22:56,382 INFO L226 Difference]: Without dead ends: 1593 [2024-11-27 20:22:56,386 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 [2024-11-27 20:22:56,387 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 402 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:56,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 663 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:22:56,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2024-11-27 20:22:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1439. [2024-11-27 20:22:56,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1063 states have (on average 1.2238946378174977) internal successors, (1301), 1140 states have internal predecessors, (1301), 197 states have call successors, (197), 151 states have call predecessors, (197), 178 states have return successors, (316), 194 states have call predecessors, (316), 197 states have call successors, (316) [2024-11-27 20:22:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1814 transitions. [2024-11-27 20:22:56,589 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1814 transitions. Word has length 68 [2024-11-27 20:22:56,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:56,590 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1814 transitions. [2024-11-27 20:22:56,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-27 20:22:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1814 transitions. [2024-11-27 20:22:56,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:22:56,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:56,593 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:56,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:22:56,594 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:56,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash 925415383, now seen corresponding path program 1 times [2024-11-27 20:22:56,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:56,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257436041] [2024-11-27 20:22:56,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:56,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 20:22:56,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:56,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257436041] [2024-11-27 20:22:56,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257436041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:56,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723808224] [2024-11-27 20:22:56,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:56,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:56,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:56,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:22:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:57,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:22:57,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:57,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 20:22:57,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723808224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:57,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:57,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-27 20:22:57,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184412503] [2024-11-27 20:22:57,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:57,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:22:57,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:57,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:22:57,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:22:57,787 INFO L87 Difference]: Start difference. First operand 1439 states and 1814 transitions. Second operand has 14 states, 14 states have (on average 10.642857142857142) internal successors, (149), 12 states have internal predecessors, (149), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-27 20:22:58,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:58,686 INFO L93 Difference]: Finished difference Result 3262 states and 4274 transitions. [2024-11-27 20:22:58,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:22:58,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.642857142857142) internal successors, (149), 12 states have internal predecessors, (149), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) Word has length 121 [2024-11-27 20:22:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:58,704 INFO L225 Difference]: With dead ends: 3262 [2024-11-27 20:22:58,705 INFO L226 Difference]: Without dead ends: 1970 [2024-11-27 20:22:58,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 237 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:22:58,713 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 301 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:58,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1807 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:22:58,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2024-11-27 20:22:58,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1749. [2024-11-27 20:22:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1278 states have (on average 1.2120500782472614) internal successors, (1549), 1382 states have internal predecessors, (1549), 241 states have call successors, (241), 201 states have call predecessors, (241), 229 states have return successors, (353), 236 states have call predecessors, (353), 241 states have call successors, (353) [2024-11-27 20:22:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2143 transitions. [2024-11-27 20:22:58,927 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2143 transitions. Word has length 121 [2024-11-27 20:22:58,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:58,928 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2143 transitions. [2024-11-27 20:22:58,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.642857142857142) internal successors, (149), 12 states have internal predecessors, (149), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-27 20:22:58,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2143 transitions. [2024-11-27 20:22:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-27 20:22:58,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:58,937 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:58,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:22:59,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:59,142 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:59,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:59,143 INFO L85 PathProgramCache]: Analyzing trace with hash -948957199, now seen corresponding path program 1 times [2024-11-27 20:22:59,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:59,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323590420] [2024-11-27 20:22:59,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:59,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 92 proven. 35 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-27 20:22:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323590420] [2024-11-27 20:22:59,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323590420] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259797611] [2024-11-27 20:22:59,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:59,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:59,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:59,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:59,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:22:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:59,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:22:59,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 167 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-27 20:23:00,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:23:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 78 proven. 41 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-27 20:23:00,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259797611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:23:00,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:23:00,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-27 20:23:00,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46470786] [2024-11-27 20:23:00,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:23:00,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 20:23:00,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:00,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 20:23:00,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:23:00,898 INFO L87 Difference]: Start difference. First operand 1749 states and 2143 transitions. Second operand has 25 states, 25 states have (on average 9.2) internal successors, (230), 22 states have internal predecessors, (230), 10 states have call successors, (39), 5 states have call predecessors, (39), 11 states have return successors, (45), 11 states have call predecessors, (45), 10 states have call successors, (45) [2024-11-27 20:23:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:04,066 INFO L93 Difference]: Finished difference Result 5417 states and 7039 transitions. [2024-11-27 20:23:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-27 20:23:04,067 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.2) internal successors, (230), 22 states have internal predecessors, (230), 10 states have call successors, (39), 5 states have call predecessors, (39), 11 states have return successors, (45), 11 states have call predecessors, (45), 10 states have call successors, (45) Word has length 215 [2024-11-27 20:23:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:04,093 INFO L225 Difference]: With dead ends: 5417 [2024-11-27 20:23:04,093 INFO L226 Difference]: Without dead ends: 3586 [2024-11-27 20:23:04,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 424 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 975 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=758, Invalid=3664, Unknown=0, NotChecked=0, Total=4422 [2024-11-27 20:23:04,105 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 811 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 2543 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 2915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:04,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1498 Invalid, 2915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2543 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:23:04,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2024-11-27 20:23:04,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3435. [2024-11-27 20:23:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 2548 states have (on average 1.1569858712715855) internal successors, (2948), 2689 states have internal predecessors, (2948), 480 states have call successors, (480), 416 states have call predecessors, (480), 406 states have return successors, (613), 426 states have call predecessors, (613), 480 states have call successors, (613) [2024-11-27 20:23:04,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4041 transitions. [2024-11-27 20:23:04,444 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4041 transitions. Word has length 215 [2024-11-27 20:23:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:04,444 INFO L471 AbstractCegarLoop]: Abstraction has 3435 states and 4041 transitions. [2024-11-27 20:23:04,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.2) internal successors, (230), 22 states have internal predecessors, (230), 10 states have call successors, (39), 5 states have call predecessors, (39), 11 states have return successors, (45), 11 states have call predecessors, (45), 10 states have call successors, (45) [2024-11-27 20:23:04,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4041 transitions. [2024-11-27 20:23:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-27 20:23:04,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:04,482 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:04,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:23:04,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:04,686 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:04,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash 248122837, now seen corresponding path program 1 times [2024-11-27 20:23:04,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:04,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126908669] [2024-11-27 20:23:04,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 101 proven. 62 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:23:05,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:05,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126908669] [2024-11-27 20:23:05,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126908669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:05,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23939435] [2024-11-27 20:23:05,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:05,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:05,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:05,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:05,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:23:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:05,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:23:05,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 206 proven. 11 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-27 20:23:05,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:23:06,363 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 101 proven. 62 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:23:06,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23939435] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:23:06,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:23:06,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2024-11-27 20:23:06,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489226103] [2024-11-27 20:23:06,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:23:06,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:23:06,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:06,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:23:06,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:23:06,368 INFO L87 Difference]: Start difference. First operand 3435 states and 4041 transitions. Second operand has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 19 states have internal predecessors, (259), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) [2024-11-27 20:23:07,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:07,595 INFO L93 Difference]: Finished difference Result 6764 states and 8022 transitions. [2024-11-27 20:23:07,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:23:07,598 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 19 states have internal predecessors, (259), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) Word has length 235 [2024-11-27 20:23:07,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:07,621 INFO L225 Difference]: With dead ends: 6764 [2024-11-27 20:23:07,621 INFO L226 Difference]: Without dead ends: 3615 [2024-11-27 20:23:07,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 466 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:23:07,630 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 333 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:07,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1267 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:23:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2024-11-27 20:23:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 3349. [2024-11-27 20:23:07,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 2484 states have (on average 1.1473429951690821) internal successors, (2850), 2615 states have internal predecessors, (2850), 448 states have call successors, (448), 416 states have call predecessors, (448), 416 states have return successors, (563), 408 states have call predecessors, (563), 448 states have call successors, (563) [2024-11-27 20:23:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 3861 transitions. [2024-11-27 20:23:07,938 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 3861 transitions. Word has length 235 [2024-11-27 20:23:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:07,939 INFO L471 AbstractCegarLoop]: Abstraction has 3349 states and 3861 transitions. [2024-11-27 20:23:07,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 19 states have internal predecessors, (259), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) [2024-11-27 20:23:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 3861 transitions. [2024-11-27 20:23:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-27 20:23:07,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:07,948 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:07,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:23:08,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:23:08,149 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:08,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2003906946, now seen corresponding path program 1 times [2024-11-27 20:23:08,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:08,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965213499] [2024-11-27 20:23:08,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:08,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 98 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-27 20:23:09,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:09,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965213499] [2024-11-27 20:23:09,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965213499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:09,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092446068] [2024-11-27 20:23:09,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:09,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:09,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:09,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:09,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:23:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:09,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:23:09,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 147 proven. 25 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-27 20:23:09,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:23:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 103 proven. 44 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-27 20:23:10,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092446068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:23:10,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:23:10,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 22 [2024-11-27 20:23:10,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113716395] [2024-11-27 20:23:10,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:23:10,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:23:10,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:10,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:23:10,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:23:10,382 INFO L87 Difference]: Start difference. First operand 3349 states and 3861 transitions. Second operand has 22 states, 22 states have (on average 11.727272727272727) internal successors, (258), 21 states have internal predecessors, (258), 15 states have call successors, (51), 8 states have call predecessors, (51), 14 states have return successors, (52), 15 states have call predecessors, (52), 15 states have call successors, (52) [2024-11-27 20:23:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:11,937 INFO L93 Difference]: Finished difference Result 6634 states and 7820 transitions. [2024-11-27 20:23:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:23:11,938 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.727272727272727) internal successors, (258), 21 states have internal predecessors, (258), 15 states have call successors, (51), 8 states have call predecessors, (51), 14 states have return successors, (52), 15 states have call predecessors, (52), 15 states have call successors, (52) Word has length 236 [2024-11-27 20:23:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:11,963 INFO L225 Difference]: With dead ends: 6634 [2024-11-27 20:23:11,963 INFO L226 Difference]: Without dead ends: 4671 [2024-11-27 20:23:11,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 467 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1121, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 20:23:11,974 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 767 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:11,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 889 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:23:11,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2024-11-27 20:23:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4161. [2024-11-27 20:23:12,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4161 states, 3088 states have (on average 1.141839378238342) internal successors, (3526), 3239 states have internal predecessors, (3526), 564 states have call successors, (564), 522 states have call predecessors, (564), 508 states have return successors, (671), 510 states have call predecessors, (671), 564 states have call successors, (671) [2024-11-27 20:23:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4161 states to 4161 states and 4761 transitions. [2024-11-27 20:23:12,439 INFO L78 Accepts]: Start accepts. Automaton has 4161 states and 4761 transitions. Word has length 236 [2024-11-27 20:23:12,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:12,440 INFO L471 AbstractCegarLoop]: Abstraction has 4161 states and 4761 transitions. [2024-11-27 20:23:12,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.727272727272727) internal successors, (258), 21 states have internal predecessors, (258), 15 states have call successors, (51), 8 states have call predecessors, (51), 14 states have return successors, (52), 15 states have call predecessors, (52), 15 states have call successors, (52) [2024-11-27 20:23:12,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4161 states and 4761 transitions. [2024-11-27 20:23:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-27 20:23:12,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:12,453 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:23:12,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:23:12,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:12,654 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:12,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:12,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1855794494, now seen corresponding path program 1 times [2024-11-27 20:23:12,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:12,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980482946] [2024-11-27 20:23:12,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:12,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-27 20:23:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980482946] [2024-11-27 20:23:12,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980482946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:12,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:12,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:12,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42005517] [2024-11-27 20:23:12,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:12,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:12,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:12,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:12,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:12,793 INFO L87 Difference]: Start difference. First operand 4161 states and 4761 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 20:23:13,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:13,010 INFO L93 Difference]: Finished difference Result 6659 states and 7624 transitions. [2024-11-27 20:23:13,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:23:13,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 273 [2024-11-27 20:23:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:13,035 INFO L225 Difference]: With dead ends: 6659 [2024-11-27 20:23:13,035 INFO L226 Difference]: Without dead ends: 2506 [2024-11-27 20:23:13,045 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 [2024-11-27 20:23:13,045 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 27 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:13,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 280 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:23:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2024-11-27 20:23:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2474. [2024-11-27 20:23:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 1848 states have (on average 1.1352813852813852) internal successors, (2098), 1942 states have internal predecessors, (2098), 327 states have call successors, (327), 306 states have call predecessors, (327), 298 states have return successors, (369), 301 states have call predecessors, (369), 327 states have call successors, (369) [2024-11-27 20:23:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 2794 transitions. [2024-11-27 20:23:13,456 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 2794 transitions. Word has length 273 [2024-11-27 20:23:13,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:13,457 INFO L471 AbstractCegarLoop]: Abstraction has 2474 states and 2794 transitions. [2024-11-27 20:23:13,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 20:23:13,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 2794 transitions. [2024-11-27 20:23:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-27 20:23:13,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:13,469 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:13,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:23:13,469 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:13,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:13,470 INFO L85 PathProgramCache]: Analyzing trace with hash -761724875, now seen corresponding path program 1 times [2024-11-27 20:23:13,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:13,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292467072] [2024-11-27 20:23:13,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:13,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 123 proven. 77 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-11-27 20:23:14,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:14,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292467072] [2024-11-27 20:23:14,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292467072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:14,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319019188] [2024-11-27 20:23:14,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:14,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:14,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:14,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:14,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:23:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:14,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 20:23:14,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 153 proven. 80 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-27 20:23:14,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:23:15,766 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 92 proven. 124 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-27 20:23:15,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319019188] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:23:15,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:23:15,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 16] total 24 [2024-11-27 20:23:15,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214497641] [2024-11-27 20:23:15,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:23:15,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 20:23:15,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:15,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 20:23:15,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:23:15,770 INFO L87 Difference]: Start difference. First operand 2474 states and 2794 transitions. Second operand has 24 states, 24 states have (on average 13.333333333333334) internal successors, (320), 23 states have internal predecessors, (320), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) [2024-11-27 20:23:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:17,502 INFO L93 Difference]: Finished difference Result 6098 states and 6974 transitions. [2024-11-27 20:23:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:23:17,503 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.333333333333334) internal successors, (320), 23 states have internal predecessors, (320), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) Word has length 273 [2024-11-27 20:23:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:17,509 INFO L225 Difference]: With dead ends: 6098 [2024-11-27 20:23:17,509 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:23:17,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 526 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 20:23:17,522 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 940 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:17,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1176 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:23:17,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:23:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:23:17,523 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) [2024-11-27 20:23:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:23:17,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 273 [2024-11-27 20:23:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:17,528 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:23:17,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.333333333333334) internal successors, (320), 23 states have internal predecessors, (320), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) [2024-11-27 20:23:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:23:17,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:23:17,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:23:17,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:23:17,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:17,737 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:17,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:23:58,316 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:23:58,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:23:58 BoogieIcfgContainer [2024-11-27 20:23:58,341 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:23:58,342 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:23:58,342 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:23:58,342 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:23:58,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:51" (3/4) ... [2024-11-27 20:23:58,345 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:23:58,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-27 20:23:58,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-27 20:23:58,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-27 20:23:58,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-27 20:23:58,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-27 20:23:58,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-27 20:23:58,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-27 20:23:58,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-27 20:23:58,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-27 20:23:58,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-27 20:23:58,361 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-27 20:23:58,361 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 20:23:58,363 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:23:58,364 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:23:58,364 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:23:58,472 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:23:58,472 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:23:58,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:23:58,473 INFO L158 Benchmark]: Toolchain (without parser) took 68007.85ms. Allocated memory was 142.6MB in the beginning and 1.0GB in the end (delta: 906.0MB). Free memory was 99.1MB in the beginning and 709.8MB in the end (delta: -610.7MB). Peak memory consumption was 295.0MB. Max. memory is 16.1GB. [2024-11-27 20:23:58,473 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:23:58,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.96ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 79.9MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:23:58,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.70ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 77.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:23:58,474 INFO L158 Benchmark]: Boogie Preprocessor took 49.75ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 75.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:23:58,474 INFO L158 Benchmark]: RCFGBuilder took 525.76ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 56.6MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:23:58,475 INFO L158 Benchmark]: TraceAbstraction took 66663.93ms. Allocated memory was 142.6MB in the beginning and 1.0GB in the end (delta: 906.0MB). Free memory was 55.9MB in the beginning and 718.0MB in the end (delta: -662.0MB). Peak memory consumption was 585.4MB. Max. memory is 16.1GB. [2024-11-27 20:23:58,475 INFO L158 Benchmark]: Witness Printer took 130.18ms. Allocated memory is still 1.0GB. Free memory was 718.0MB in the beginning and 709.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:23:58,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.96ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 79.9MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.70ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 77.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.75ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 75.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 525.76ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 56.6MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 66663.93ms. Allocated memory was 142.6MB in the beginning and 1.0GB in the end (delta: 906.0MB). Free memory was 55.9MB in the beginning and 718.0MB in the end (delta: -662.0MB). Peak memory consumption was 585.4MB. Max. memory is 16.1GB. * Witness Printer took 130.18ms. Allocated memory is still 1.0GB. Free memory was 718.0MB in the beginning and 709.8MB in the end (delta: 8.1MB). 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] - GenericResultAtLocation [Line: 176]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] - GenericResultAtLocation [Line: 450]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] - GenericResultAtLocation [Line: 697]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] * 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: 658]: 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 11 procedures, 116 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.0s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4109 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4064 mSDsluCounter, 10302 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8121 mSDsCounter, 1529 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7141 IncrementalHoareTripleChecker+Invalid, 8670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1529 mSolverCounterUnsat, 2181 mSDtfsCounter, 7141 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2400 GetRequests, 2143 SyntacticMatches, 26 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2005 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4161occurred in iteration=12, InterpolantAutomatonStates: 173, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 1356 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 2834 NumberOfCodeBlocks, 2834 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3890 ConstructedInterpolants, 0 QuantifiedInterpolants, 8244 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3135 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 3514/4151 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: 565]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 117]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((((((((2 == waterLevel) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 == systemActive))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:23:58,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db8463f8-17ae-445b-8000-b2dc4af0b3ec/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