./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product54.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_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/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_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/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_5dbd2479-a252-4274-b40b-480219be84c2/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 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:19:20,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:19:20,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:19:20,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:19:20,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:19:20,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:19:20,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:19:20,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:19:20,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:19:20,263 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:19:20,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:19:20,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:19:20,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:19:20,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:19:20,265 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:19:20,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:19:20,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:19:20,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:19:20,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:19:20,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:19:20,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:19:20,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:19:20,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:19:20,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:19:20,267 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:19:20,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:19:20,268 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:19:20,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:19:20,268 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:19:20,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:19:20,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:19:20,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:20,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:20,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:19:20,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:19:20,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:19:20,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:19:20,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:19:20,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:19:20,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:19:20,270 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:19:20,270 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_5dbd2479-a252-4274-b40b-480219be84c2/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 -> 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 [2024-11-28 05:19:20,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:19:20,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:19:20,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:19:20,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:19:20,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:19:20,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2024-11-28 05:19:23,830 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/data/93d0b8ea2/54b1f5c5e5f142b182ebc83b4a6d9daa/FLAG317bf193f [2024-11-28 05:19:24,270 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:19:24,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2024-11-28 05:19:24,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/data/93d0b8ea2/54b1f5c5e5f142b182ebc83b4a6d9daa/FLAG317bf193f [2024-11-28 05:19:24,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/data/93d0b8ea2/54b1f5c5e5f142b182ebc83b4a6d9daa [2024-11-28 05:19:24,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:19:24,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:19:24,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:19:24,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:19:24,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:19:24,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1953c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24, skipping insertion in model container [2024-11-28 05:19:24,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:19:24,607 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_5dbd2479-a252-4274-b40b-480219be84c2/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c[3971,3984] [2024-11-28 05:19:24,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:19:24,740 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:19:24,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-11-28 05:19:24,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [101] [2024-11-28 05:19:24,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [211] [2024-11-28 05:19:24,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] [2024-11-28 05:19:24,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [323] [2024-11-28 05:19:24,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [560] [2024-11-28 05:19:24,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [627] [2024-11-28 05:19:24,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [662] [2024-11-28 05:19:24,767 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_5dbd2479-a252-4274-b40b-480219be84c2/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c[3971,3984] [2024-11-28 05:19:24,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:19:24,854 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:19:24,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24 WrapperNode [2024-11-28 05:19:24,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:19:24,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:19:24,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:19:24,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:19:24,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,936 INFO L138 Inliner]: procedures = 59, calls = 106, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 235 [2024-11-28 05:19:24,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:19:24,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:19:24,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:19:24,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:19:24,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,985 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:19:24,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,991 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:24,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:25,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:25,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:19:25,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:19:25,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:19:25,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:19:25,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (1/1) ... [2024-11-28 05:19:25,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:19:25,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:25,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:19:25,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:19:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:19:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 05:19:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 05:19:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 05:19:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 05:19:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 05:19:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 05:19:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 05:19:25,077 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 05:19:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 05:19:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 05:19:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-28 05:19:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-28 05:19:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-28 05:19:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-28 05:19:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-28 05:19:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-28 05:19:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:19:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 05:19:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 05:19:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:19:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:19:25,200 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:19:25,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:19:25,680 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-28 05:19:25,680 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:19:25,693 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:19:25,694 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 05:19:25,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:25 BoogieIcfgContainer [2024-11-28 05:19:25,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:19:25,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:19:25,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:19:25,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:19:25,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:19:24" (1/3) ... [2024-11-28 05:19:25,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610d0287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:19:25, skipping insertion in model container [2024-11-28 05:19:25,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:19:24" (2/3) ... [2024-11-28 05:19:25,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610d0287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:19:25, skipping insertion in model container [2024-11-28 05:19:25,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:25" (3/3) ... [2024-11-28 05:19:25,705 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2024-11-28 05:19:25,720 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:19:25,722 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product54.cil.c that has 10 procedures, 104 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 05:19:25,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:19:25,804 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;@56e8afaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:19:25,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:19:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 87 states have internal predecessors, (106), 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) [2024-11-28 05:19:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 05:19:25,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:25,820 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:25,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:25,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:25,828 INFO L85 PathProgramCache]: Analyzing trace with hash -655122871, now seen corresponding path program 1 times [2024-11-28 05:19:25,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:25,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156418089] [2024-11-28 05:19:25,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:25,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:26,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:26,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:26,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156418089] [2024-11-28 05:19:26,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156418089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:26,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:26,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:19:26,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524583910] [2024-11-28 05:19:26,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:26,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:19:26,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:26,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:19:26,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:19:26,140 INFO L87 Difference]: Start difference. First operand has 104 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 87 states have internal predecessors, (106), 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) 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) [2024-11-28 05:19:26,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:26,195 INFO L93 Difference]: Finished difference Result 199 states and 270 transitions. [2024-11-28 05:19:26,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:19:26,198 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 [2024-11-28 05:19:26,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:26,209 INFO L225 Difference]: With dead ends: 199 [2024-11-28 05:19:26,209 INFO L226 Difference]: Without dead ends: 95 [2024-11-28 05:19:26,213 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 [2024-11-28 05:19:26,217 INFO L435 NwaCegarLoop]: 132 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, 132 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 [2024-11-28 05:19:26,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:19:26,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-28 05:19:26,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-28 05:19:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 79 states have internal predecessors, (92), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 05:19:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 123 transitions. [2024-11-28 05:19:26,266 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 123 transitions. Word has length 32 [2024-11-28 05:19:26,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:26,267 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 123 transitions. [2024-11-28 05:19:26,267 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) [2024-11-28 05:19:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2024-11-28 05:19:26,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 05:19:26,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:26,270 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:26,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:19:26,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:26,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:26,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1057163389, now seen corresponding path program 1 times [2024-11-28 05:19:26,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:26,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419950932] [2024-11-28 05:19:26,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:26,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:26,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:26,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:26,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419950932] [2024-11-28 05:19:26,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419950932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:26,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:26,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:19:26,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300360949] [2024-11-28 05:19:26,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:26,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:19:26,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:26,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:19:26,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:19:26,535 INFO L87 Difference]: Start difference. First operand 95 states and 123 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) [2024-11-28 05:19:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:26,564 INFO L93 Difference]: Finished difference Result 156 states and 202 transitions. [2024-11-28 05:19:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:19:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-28 05:19:26,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:26,570 INFO L225 Difference]: With dead ends: 156 [2024-11-28 05:19:26,570 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 05:19:26,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:19:26,572 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 13 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:26,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 206 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:19:26,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 05:19:26,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-28 05:19:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:19:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-28 05:19:26,596 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 32 [2024-11-28 05:19:26,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:26,596 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-28 05:19:26,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:19:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-28 05:19:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 05:19:26,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:26,602 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] [2024-11-28 05:19:26,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:19:26,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:26,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:26,606 INFO L85 PathProgramCache]: Analyzing trace with hash -472643303, now seen corresponding path program 1 times [2024-11-28 05:19:26,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:26,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657270059] [2024-11-28 05:19:26,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:26,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:26,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:26,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657270059] [2024-11-28 05:19:26,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657270059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:26,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:26,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:19:26,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484501539] [2024-11-28 05:19:26,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:26,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:19:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:26,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:19:26,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:19:26,719 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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) [2024-11-28 05:19:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:26,765 INFO L93 Difference]: Finished difference Result 166 states and 217 transitions. [2024-11-28 05:19:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:19:26,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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 [2024-11-28 05:19:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:26,772 INFO L225 Difference]: With dead ends: 166 [2024-11-28 05:19:26,772 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 05:19:26,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:19:26,774 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 102 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:26,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 110 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:19:26,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 05:19:26,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-28 05:19:26,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:19:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2024-11-28 05:19:26,802 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 37 [2024-11-28 05:19:26,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:26,808 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2024-11-28 05:19:26,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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) [2024-11-28 05:19:26,808 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2024-11-28 05:19:26,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 05:19:26,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:26,811 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] [2024-11-28 05:19:26,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:19:26,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:26,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash -53068767, now seen corresponding path program 1 times [2024-11-28 05:19:26,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:26,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544685426] [2024-11-28 05:19:26,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:26,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:26,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:26,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544685426] [2024-11-28 05:19:26,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544685426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:26,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:26,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:19:26,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208010079] [2024-11-28 05:19:26,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:26,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:19:26,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:26,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:19:26,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:19:26,884 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:19:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:26,960 INFO L93 Difference]: Finished difference Result 217 states and 286 transitions. [2024-11-28 05:19:26,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:19:26,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-28 05:19:26,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:26,963 INFO L225 Difference]: With dead ends: 217 [2024-11-28 05:19:26,963 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 05:19:26,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:19:26,965 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 82 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:26,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 205 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:19:26,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 05:19:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-11-28 05:19:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 110 states have internal predecessors, (131), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2024-11-28 05:19:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 173 transitions. [2024-11-28 05:19:26,987 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 173 transitions. Word has length 46 [2024-11-28 05:19:26,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:26,988 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 173 transitions. [2024-11-28 05:19:26,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:19:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 173 transitions. [2024-11-28 05:19:26,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 05:19:26,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:26,990 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] [2024-11-28 05:19:26,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:19:26,990 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:26,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:26,991 INFO L85 PathProgramCache]: Analyzing trace with hash 64099264, now seen corresponding path program 1 times [2024-11-28 05:19:26,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:26,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226685770] [2024-11-28 05:19:26,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:26,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:27,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:27,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226685770] [2024-11-28 05:19:27,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226685770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:27,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:27,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:19:27,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815379304] [2024-11-28 05:19:27,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:27,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:19:27,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:27,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:19:27,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:19:27,157 INFO L87 Difference]: Start difference. First operand 136 states and 173 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:19:27,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:27,206 INFO L93 Difference]: Finished difference Result 267 states and 348 transitions. [2024-11-28 05:19:27,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:19:27,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-28 05:19:27,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:27,210 INFO L225 Difference]: With dead ends: 267 [2024-11-28 05:19:27,210 INFO L226 Difference]: Without dead ends: 139 [2024-11-28 05:19:27,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:19:27,212 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:27,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:19:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-28 05:19:27,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-28 05:19:27,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 105 states have (on average 1.276190476190476) internal successors, (134), 113 states have internal predecessors, (134), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2024-11-28 05:19:27,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 176 transitions. [2024-11-28 05:19:27,236 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 176 transitions. Word has length 56 [2024-11-28 05:19:27,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:27,236 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 176 transitions. [2024-11-28 05:19:27,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:19:27,237 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 176 transitions. [2024-11-28 05:19:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 05:19:27,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:27,239 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] [2024-11-28 05:19:27,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:19:27,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:27,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash 486801090, now seen corresponding path program 1 times [2024-11-28 05:19:27,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:27,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530791389] [2024-11-28 05:19:27,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:27,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:27,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530791389] [2024-11-28 05:19:27,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530791389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:27,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:27,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:19:27,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779647050] [2024-11-28 05:19:27,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:27,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:19:27,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:27,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:19:27,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:19:27,425 INFO L87 Difference]: Start difference. First operand 139 states and 176 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:19:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:27,515 INFO L93 Difference]: Finished difference Result 272 states and 359 transitions. [2024-11-28 05:19:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:19:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-28 05:19:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:27,518 INFO L225 Difference]: With dead ends: 272 [2024-11-28 05:19:27,518 INFO L226 Difference]: Without dead ends: 141 [2024-11-28 05:19:27,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:19:27,521 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 104 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:27,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 318 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:19:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-28 05:19:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-28 05:19:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 115 states have internal predecessors, (136), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2024-11-28 05:19:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 178 transitions. [2024-11-28 05:19:27,548 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 178 transitions. Word has length 56 [2024-11-28 05:19:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:27,549 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 178 transitions. [2024-11-28 05:19:27,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:19:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2024-11-28 05:19:27,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 05:19:27,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:27,551 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] [2024-11-28 05:19:27,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:19:27,552 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:27,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:27,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1318637244, now seen corresponding path program 1 times [2024-11-28 05:19:27,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:27,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529510974] [2024-11-28 05:19:27,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:27,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:27,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:27,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529510974] [2024-11-28 05:19:27,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529510974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:27,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:27,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:19:27,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11093651] [2024-11-28 05:19:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:27,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:19:27,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:27,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:19:27,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:19:27,759 INFO L87 Difference]: Start difference. First operand 141 states and 178 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:19:27,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:27,995 INFO L93 Difference]: Finished difference Result 459 states and 601 transitions. [2024-11-28 05:19:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:19:27,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2024-11-28 05:19:27,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:28,006 INFO L225 Difference]: With dead ends: 459 [2024-11-28 05:19:28,006 INFO L226 Difference]: Without dead ends: 326 [2024-11-28 05:19:28,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:19:28,010 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 145 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:28,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 378 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:19:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-28 05:19:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 317. [2024-11-28 05:19:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 238 states have (on average 1.2563025210084033) internal successors, (299), 253 states have internal predecessors, (299), 42 states have call successors, (42), 35 states have call predecessors, (42), 36 states have return successors, (67), 39 states have call predecessors, (67), 42 states have call successors, (67) [2024-11-28 05:19:28,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 408 transitions. [2024-11-28 05:19:28,122 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 408 transitions. Word has length 56 [2024-11-28 05:19:28,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:28,123 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 408 transitions. [2024-11-28 05:19:28,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:19:28,123 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 408 transitions. [2024-11-28 05:19:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 05:19:28,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:28,128 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] [2024-11-28 05:19:28,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:19:28,133 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:28,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:28,133 INFO L85 PathProgramCache]: Analyzing trace with hash 430978136, now seen corresponding path program 1 times [2024-11-28 05:19:28,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:28,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490450703] [2024-11-28 05:19:28,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:19:28,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:28,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490450703] [2024-11-28 05:19:28,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490450703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:28,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:28,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:19:28,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606152388] [2024-11-28 05:19:28,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:28,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:19:28,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:28,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:19:28,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:19:28,407 INFO L87 Difference]: Start difference. First operand 317 states and 408 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:19:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:28,943 INFO L93 Difference]: Finished difference Result 664 states and 863 transitions. [2024-11-28 05:19:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:19:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-11-28 05:19:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:28,955 INFO L225 Difference]: With dead ends: 664 [2024-11-28 05:19:28,955 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 05:19:28,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:19:28,961 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 137 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:28,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 438 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:19:28,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 05:19:29,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 353. [2024-11-28 05:19:29,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 264 states have (on average 1.2272727272727273) internal successors, (324), 279 states have internal predecessors, (324), 45 states have call successors, (45), 35 states have call predecessors, (45), 43 states have return successors, (80), 48 states have call predecessors, (80), 45 states have call successors, (80) [2024-11-28 05:19:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 449 transitions. [2024-11-28 05:19:29,058 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 449 transitions. Word has length 58 [2024-11-28 05:19:29,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:29,058 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 449 transitions. [2024-11-28 05:19:29,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:19:29,059 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 449 transitions. [2024-11-28 05:19:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 05:19:29,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:29,061 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] [2024-11-28 05:19:29,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:19:29,066 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:29,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:29,067 INFO L85 PathProgramCache]: Analyzing trace with hash 558099946, now seen corresponding path program 1 times [2024-11-28 05:19:29,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:29,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147321603] [2024-11-28 05:19:29,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:29,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:19:29,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:29,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147321603] [2024-11-28 05:19:29,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147321603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:29,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:29,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:19:29,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758588324] [2024-11-28 05:19:29,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:29,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:19:29,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:29,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:19:29,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:19:29,450 INFO L87 Difference]: Start difference. First operand 353 states and 449 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 05:19:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:30,309 INFO L93 Difference]: Finished difference Result 992 states and 1315 transitions. [2024-11-28 05:19:30,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:19:30,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 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 60 [2024-11-28 05:19:30,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:30,319 INFO L225 Difference]: With dead ends: 992 [2024-11-28 05:19:30,320 INFO L226 Difference]: Without dead ends: 702 [2024-11-28 05:19:30,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:19:30,326 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 355 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:30,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:19:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-28 05:19:30,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 627. [2024-11-28 05:19:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 466 states have (on average 1.2145922746781115) internal successors, (566), 495 states have internal predecessors, (566), 81 states have call successors, (81), 61 states have call predecessors, (81), 79 states have return successors, (142), 86 states have call predecessors, (142), 81 states have call successors, (142) [2024-11-28 05:19:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 789 transitions. [2024-11-28 05:19:30,455 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 789 transitions. Word has length 60 [2024-11-28 05:19:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:30,457 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 789 transitions. [2024-11-28 05:19:30,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 05:19:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 789 transitions. [2024-11-28 05:19:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 05:19:30,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:30,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:30,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:19:30,461 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:30,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1707098373, now seen corresponding path program 1 times [2024-11-28 05:19:30,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:30,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523851351] [2024-11-28 05:19:30,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:30,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 05:19:30,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:30,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523851351] [2024-11-28 05:19:30,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523851351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:19:30,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805205793] [2024-11-28 05:19:30,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:30,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:30,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:30,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:19:30,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:19:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:30,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:19:30,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:19:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:19:31,200 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:19:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 05:19:31,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805205793] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:19:31,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:19:31,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2024-11-28 05:19:31,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61520208] [2024-11-28 05:19:31,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:19:31,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 05:19:31,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:31,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:19:31,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:19:31,581 INFO L87 Difference]: Start difference. First operand 627 states and 789 transitions. Second operand has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 13 states have internal predecessors, (142), 7 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 05:19:32,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:32,445 INFO L93 Difference]: Finished difference Result 1382 states and 1806 transitions. [2024-11-28 05:19:32,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:19:32,446 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 13 states have internal predecessors, (142), 7 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) Word has length 109 [2024-11-28 05:19:32,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:32,453 INFO L225 Difference]: With dead ends: 1382 [2024-11-28 05:19:32,453 INFO L226 Difference]: Without dead ends: 816 [2024-11-28 05:19:32,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-28 05:19:32,458 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 390 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:32,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 1168 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:19:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-28 05:19:32,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 714. [2024-11-28 05:19:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 526 states have (on average 1.2053231939163498) internal successors, (634), 564 states have internal predecessors, (634), 94 states have call successors, (94), 79 states have call predecessors, (94), 93 states have return successors, (138), 95 states have call predecessors, (138), 94 states have call successors, (138) [2024-11-28 05:19:32,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 866 transitions. [2024-11-28 05:19:32,611 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 866 transitions. Word has length 109 [2024-11-28 05:19:32,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:32,613 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 866 transitions. [2024-11-28 05:19:32,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 13 states have internal predecessors, (142), 7 states have call successors, (22), 4 states have call predecessors, (22), 8 states have return successors, (21), 9 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 05:19:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 866 transitions. [2024-11-28 05:19:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-28 05:19:32,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:32,621 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:32,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:19:32,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:32,822 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:32,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 848542375, now seen corresponding path program 1 times [2024-11-28 05:19:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:32,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140674676] [2024-11-28 05:19:32,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 94 proven. 7 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-28 05:19:33,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:33,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140674676] [2024-11-28 05:19:33,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140674676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:19:33,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518002914] [2024-11-28 05:19:33,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:33,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:33,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:33,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:19:33,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:19:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:33,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 05:19:33,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:19:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 147 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-28 05:19:33,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:19:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 78 proven. 41 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-28 05:19:34,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518002914] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:19:34,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:19:34,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 22 [2024-11-28 05:19:34,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967235693] [2024-11-28 05:19:34,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:19:34,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 05:19:34,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:34,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 05:19:34,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-28 05:19:34,516 INFO L87 Difference]: Start difference. First operand 714 states and 866 transitions. Second operand has 22 states, 22 states have (on average 9.818181818181818) internal successors, (216), 21 states have internal predecessors, (216), 10 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (36), 9 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-28 05:19:36,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:36,713 INFO L93 Difference]: Finished difference Result 2209 states and 2827 transitions. [2024-11-28 05:19:36,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 05:19:36,714 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.818181818181818) internal successors, (216), 21 states have internal predecessors, (216), 10 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (36), 9 states have call predecessors, (36), 10 states have call successors, (36) Word has length 191 [2024-11-28 05:19:36,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:36,727 INFO L225 Difference]: With dead ends: 2209 [2024-11-28 05:19:36,727 INFO L226 Difference]: Without dead ends: 1470 [2024-11-28 05:19:36,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 377 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=650, Invalid=2430, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 05:19:36,734 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 684 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:36,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 940 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:19:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2024-11-28 05:19:36,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1370. [2024-11-28 05:19:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1022 states have (on average 1.149706457925636) internal successors, (1175), 1077 states have internal predecessors, (1175), 181 states have call successors, (181), 160 states have call predecessors, (181), 166 states have return successors, (238), 169 states have call predecessors, (238), 181 states have call successors, (238) [2024-11-28 05:19:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1594 transitions. [2024-11-28 05:19:36,954 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1594 transitions. Word has length 191 [2024-11-28 05:19:36,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:36,955 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 1594 transitions. [2024-11-28 05:19:36,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.818181818181818) internal successors, (216), 21 states have internal predecessors, (216), 10 states have call successors, (33), 5 states have call predecessors, (33), 10 states have return successors, (36), 9 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-28 05:19:36,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1594 transitions. [2024-11-28 05:19:36,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-28 05:19:36,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:36,968 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:36,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:19:37,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:37,168 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:37,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:37,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1935004709, now seen corresponding path program 1 times [2024-11-28 05:19:37,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:37,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808252122] [2024-11-28 05:19:37,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:37,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 05:19:37,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:37,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808252122] [2024-11-28 05:19:37,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808252122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:19:37,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643839786] [2024-11-28 05:19:37,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:37,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:37,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:37,684 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:19:37,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:19:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:37,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:19:37,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:19:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 186 proven. 11 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 05:19:38,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:19:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 101 proven. 61 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 05:19:38,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643839786] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:19:38,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:19:38,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2024-11-28 05:19:38,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259252561] [2024-11-28 05:19:38,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:19:38,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 05:19:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:38,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 05:19:38,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:19:38,915 INFO L87 Difference]: Start difference. First operand 1370 states and 1594 transitions. Second operand has 23 states, 23 states have (on average 10.869565217391305) internal successors, (250), 20 states have internal predecessors, (250), 9 states have call successors, (41), 5 states have call predecessors, (41), 14 states have return successors, (43), 12 states have call predecessors, (43), 9 states have call successors, (43) [2024-11-28 05:19:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:39,976 INFO L93 Difference]: Finished difference Result 2690 states and 3164 transitions. [2024-11-28 05:19:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:19:39,977 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.869565217391305) internal successors, (250), 20 states have internal predecessors, (250), 9 states have call successors, (41), 5 states have call predecessors, (41), 14 states have return successors, (43), 12 states have call predecessors, (43), 9 states have call successors, (43) Word has length 207 [2024-11-28 05:19:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:39,989 INFO L225 Difference]: With dead ends: 2690 [2024-11-28 05:19:39,989 INFO L226 Difference]: Without dead ends: 1434 [2024-11-28 05:19:39,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 412 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 05:19:39,995 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 445 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:39,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 923 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:19:39,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2024-11-28 05:19:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1400. [2024-11-28 05:19:40,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1042 states have (on average 1.1420345489443378) internal successors, (1190), 1097 states have internal predecessors, (1190), 181 states have call successors, (181), 170 states have call predecessors, (181), 176 states have return successors, (238), 169 states have call predecessors, (238), 181 states have call successors, (238) [2024-11-28 05:19:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1609 transitions. [2024-11-28 05:19:40,203 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1609 transitions. Word has length 207 [2024-11-28 05:19:40,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:40,204 INFO L471 AbstractCegarLoop]: Abstraction has 1400 states and 1609 transitions. [2024-11-28 05:19:40,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.869565217391305) internal successors, (250), 20 states have internal predecessors, (250), 9 states have call successors, (41), 5 states have call predecessors, (41), 14 states have return successors, (43), 12 states have call predecessors, (43), 9 states have call successors, (43) [2024-11-28 05:19:40,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1609 transitions. [2024-11-28 05:19:40,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-28 05:19:40,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:40,213 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:40,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:19:40,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:40,417 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:40,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:40,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1276457474, now seen corresponding path program 1 times [2024-11-28 05:19:40,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:40,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768735499] [2024-11-28 05:19:40,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:40,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 94 proven. 57 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-28 05:19:41,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:41,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768735499] [2024-11-28 05:19:41,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768735499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:19:41,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230310529] [2024-11-28 05:19:41,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:41,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:19:41,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:19:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:41,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:19:41,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:19:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 131 proven. 25 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 05:19:42,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:19:42,864 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 99 proven. 44 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-28 05:19:42,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230310529] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:19:42,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:19:42,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 13] total 22 [2024-11-28 05:19:42,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467217544] [2024-11-28 05:19:42,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:19:42,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 05:19:42,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:42,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 05:19:42,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-11-28 05:19:42,871 INFO L87 Difference]: Start difference. First operand 1400 states and 1609 transitions. Second operand has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 14 states have call successors, (43), 8 states have call predecessors, (43), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) [2024-11-28 05:19:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:44,427 INFO L93 Difference]: Finished difference Result 2706 states and 3182 transitions. [2024-11-28 05:19:44,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 05:19:44,428 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 14 states have call successors, (43), 8 states have call predecessors, (43), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) Word has length 208 [2024-11-28 05:19:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:44,440 INFO L225 Difference]: With dead ends: 2706 [2024-11-28 05:19:44,440 INFO L226 Difference]: Without dead ends: 1888 [2024-11-28 05:19:44,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 411 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 05:19:44,447 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 557 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:44,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 926 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:19:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2024-11-28 05:19:44,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1726. [2024-11-28 05:19:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1289 states have (on average 1.1365399534522886) internal successors, (1465), 1347 states have internal predecessors, (1465), 225 states have call successors, (225), 211 states have call predecessors, (225), 211 states have return successors, (274), 210 states have call predecessors, (274), 225 states have call successors, (274) [2024-11-28 05:19:44,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 1964 transitions. [2024-11-28 05:19:44,652 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 1964 transitions. Word has length 208 [2024-11-28 05:19:44,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:44,653 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 1964 transitions. [2024-11-28 05:19:44,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 14 states have call successors, (43), 8 states have call predecessors, (43), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) [2024-11-28 05:19:44,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 1964 transitions. [2024-11-28 05:19:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-28 05:19:44,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:19:44,662 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:44,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:19:44,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 05:19:44,863 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:19:44,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:19:44,864 INFO L85 PathProgramCache]: Analyzing trace with hash -942582153, now seen corresponding path program 1 times [2024-11-28 05:19:44,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:19:44,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885451937] [2024-11-28 05:19:44,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:44,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:19:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 128 proven. 87 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-28 05:19:45,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:45,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885451937] [2024-11-28 05:19:45,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885451937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:19:45,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666974929] [2024-11-28 05:19:45,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:19:45,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:45,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:19:45,469 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:19:45,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:19:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:45,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 05:19:45,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:19:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 152 proven. 89 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-28 05:19:46,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:19:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 97 proven. 136 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 05:19:47,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666974929] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:19:47,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:19:47,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 16] total 24 [2024-11-28 05:19:47,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965744201] [2024-11-28 05:19:47,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:19:47,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 05:19:47,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:47,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 05:19:47,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-28 05:19:47,494 INFO L87 Difference]: Start difference. First operand 1726 states and 1964 transitions. Second operand has 24 states, 24 states have (on average 12.5) internal successors, (300), 23 states have internal predecessors, (300), 15 states have call successors, (54), 9 states have call predecessors, (54), 17 states have return successors, (58), 15 states have call predecessors, (58), 15 states have call successors, (58) [2024-11-28 05:19:49,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:19:49,385 INFO L93 Difference]: Finished difference Result 4068 states and 4696 transitions. [2024-11-28 05:19:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:19:49,386 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.5) internal successors, (300), 23 states have internal predecessors, (300), 15 states have call successors, (54), 9 states have call predecessors, (54), 17 states have return successors, (58), 15 states have call predecessors, (58), 15 states have call successors, (58) Word has length 263 [2024-11-28 05:19:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:19:49,390 INFO L225 Difference]: With dead ends: 4068 [2024-11-28 05:19:49,391 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 05:19:49,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 506 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 05:19:49,402 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 618 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:19:49,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1149 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:19:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 05:19:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 05:19:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:19:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 05:19:49,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2024-11-28 05:19:49,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:19:49,406 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:19:49,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.5) internal successors, (300), 23 states have internal predecessors, (300), 15 states have call successors, (54), 9 states have call predecessors, (54), 17 states have return successors, (58), 15 states have call predecessors, (58), 15 states have call successors, (58) [2024-11-28 05:19:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:19:49,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 05:19:49,410 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 05:19:49,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:19:49,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:19:49,613 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:19:49,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 05:20:13,975 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:20:13,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:20:13 BoogieIcfgContainer [2024-11-28 05:20:13,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:20:13,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:20:13,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:20:13,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:20:13,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:19:25" (3/4) ... [2024-11-28 05:20:14,002 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 05:20:14,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-28 05:20:14,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 05:20:14,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 05:20:14,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 05:20:14,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 05:20:14,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-28 05:20:14,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 05:20:14,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-28 05:20:14,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-28 05:20:14,020 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-28 05:20:14,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 05:20:14,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 05:20:14,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:20:14,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:20:14,112 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:20:14,112 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:20:14,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:20:14,113 INFO L158 Benchmark]: Toolchain (without parser) took 49806.36ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 100.3MB in the beginning and 257.8MB in the end (delta: -157.5MB). Peak memory consumption was 349.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:14,113 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:14,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.05ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 80.8MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:20:14,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.45ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 78.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:14,114 INFO L158 Benchmark]: Boogie Preprocessor took 65.79ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 77.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:14,114 INFO L158 Benchmark]: RCFGBuilder took 691.41ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 58.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:20:14,114 INFO L158 Benchmark]: TraceAbstraction took 48301.28ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 58.0MB in the beginning and 266.0MB in the end (delta: -208.0MB). Peak memory consumption was 341.8MB. Max. memory is 16.1GB. [2024-11-28 05:20:14,116 INFO L158 Benchmark]: Witness Printer took 113.36ms. Allocated memory is still 654.3MB. Free memory was 266.0MB in the beginning and 257.8MB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:14,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.05ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 80.8MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.45ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 78.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.79ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 77.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 691.41ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 58.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 48301.28ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 58.0MB in the beginning and 266.0MB in the end (delta: -208.0MB). Peak memory consumption was 341.8MB. Max. memory is 16.1GB. * Witness Printer took 113.36ms. Allocated memory is still 654.3MB. Free memory was 266.0MB in the beginning and 257.8MB in the end (delta: 8.2MB). There was no memory consumed. 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,"Environment.i","") [101] - GenericResultAtLocation [Line: 211]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [211] - GenericResultAtLocation [Line: 220]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] - GenericResultAtLocation [Line: 323]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [323] - GenericResultAtLocation [Line: 560]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [560] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [627] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [662] * 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: 216]: 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 10 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.8s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3665 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3632 mSDsluCounter, 7908 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6046 mSDsCounter, 1255 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5604 IncrementalHoareTripleChecker+Invalid, 6859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1255 mSolverCounterUnsat, 1862 mSDtfsCounter, 5604 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2200 GetRequests, 1950 SyntacticMatches, 26 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1726occurred in iteration=13, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 486 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 2389 NumberOfCodeBlocks, 2389 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3343 ConstructedInterpolants, 0 QuantifiedInterpolants, 7630 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2856 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2853/3513 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: 571]: Loop Invariant Derived loop invariant: ((((((((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))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 570]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 05:20:14,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dbd2479-a252-4274-b40b-480219be84c2/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