./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.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_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/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_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/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_2e63d9f2-439e-4a92-a76e-4ad233407a02/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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:25:09,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:25:09,472 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:25:09,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:25:09,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:25:09,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:25:09,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:25:09,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:25:09,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:25:09,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:25:09,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:25:09,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:25:09,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:25:09,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:25:09,512 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:25:09,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:25:09,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:25:09,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:25:09,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:25:09,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:25:09,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:25:09,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:25:09,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:25:09,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:25:09,513 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:25:09,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:25:09,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:25:09,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:25:09,514 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:25:09,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:25:09,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:25:09,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:25:09,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:09,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:25:09,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:25:09,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:25:09,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:25:09,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:09,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:25:09,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:25:09,516 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:25:09,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:25:09,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:25:09,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:25:09,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:25:09,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:25:09,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:25:09,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:25:09,517 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_2e63d9f2-439e-4a92-a76e-4ad233407a02/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 -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2024-11-28 02:25:09,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:25:09,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:25:09,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:25:09,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:25:09,867 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:25:09,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2024-11-28 02:25:12,846 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/data/a3157cf0e/3132063d2af24bcdbc9a9fe4fe9a3691/FLAG19141d9bf [2024-11-28 02:25:13,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:25:13,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2024-11-28 02:25:13,220 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/data/a3157cf0e/3132063d2af24bcdbc9a9fe4fe9a3691/FLAG19141d9bf [2024-11-28 02:25:13,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/data/a3157cf0e/3132063d2af24bcdbc9a9fe4fe9a3691 [2024-11-28 02:25:13,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:25:13,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:25:13,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:25:13,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:25:13,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:25:13,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58347240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13, skipping insertion in model container [2024-11-28 02:25:13,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:25:13,511 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_2e63d9f2-439e-4a92-a76e-4ad233407a02/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2024-11-28 02:25:13,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:25:13,704 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:25:13,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-28 02:25:13,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2024-11-28 02:25:13,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] [2024-11-28 02:25:13,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] [2024-11-28 02:25:13,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2024-11-28 02:25:13,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] [2024-11-28 02:25:13,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] [2024-11-28 02:25:13,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] [2024-11-28 02:25:13,723 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_2e63d9f2-439e-4a92-a76e-4ad233407a02/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2024-11-28 02:25:13,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:25:13,801 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:25:13,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13 WrapperNode [2024-11-28 02:25:13,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:25:13,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:25:13,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:25:13,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:25:13,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,881 INFO L138 Inliner]: procedures = 55, calls = 97, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 177 [2024-11-28 02:25:13,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:25:13,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:25:13,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:25:13,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:25:13,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,928 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 02:25:13,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,936 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:25:13,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:25:13,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:25:13,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:25:13,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (1/1) ... [2024-11-28 02:25:13,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:13,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:25:13,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:25:13,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:25:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:25:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 02:25:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 02:25:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 02:25:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 02:25:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 02:25:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 02:25:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 02:25:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 02:25:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-28 02:25:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-28 02:25:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:25:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 02:25:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 02:25:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:25:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:25:14,112 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:25:14,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:25:14,406 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-28 02:25:14,406 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:25:14,418 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:25:14,418 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:25:14,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:14 BoogieIcfgContainer [2024-11-28 02:25:14,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:25:14,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:25:14,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:25:14,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:25:14,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:25:13" (1/3) ... [2024-11-28 02:25:14,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:25:14, skipping insertion in model container [2024-11-28 02:25:14,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:13" (2/3) ... [2024-11-28 02:25:14,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:25:14, skipping insertion in model container [2024-11-28 02:25:14,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:14" (3/3) ... [2024-11-28 02:25:14,430 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2024-11-28 02:25:14,448 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:25:14,450 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product34.cil.c that has 7 procedures, 79 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 02:25:14,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:25:14,524 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;@3bc0f1d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:25:14,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:25:14,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 67 states have internal predecessors, (85), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:25:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 02:25:14,538 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:14,538 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 02:25:14,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:14,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1565063003, now seen corresponding path program 1 times [2024-11-28 02:25:14,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729977017] [2024-11-28 02:25:14,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:14,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:14,783 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 02:25:14,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:14,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729977017] [2024-11-28 02:25:14,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729977017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:14,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:14,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:25:14,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942435230] [2024-11-28 02:25:14,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:14,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:25:14,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:14,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:25:14,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:25:14,819 INFO L87 Difference]: Start difference. First operand has 79 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 67 states have internal predecessors, (85), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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 02:25:14,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:14,891 INFO L93 Difference]: Finished difference Result 149 states and 204 transitions. [2024-11-28 02:25:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:25:14,893 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 02:25:14,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:14,905 INFO L225 Difference]: With dead ends: 149 [2024-11-28 02:25:14,906 INFO L226 Difference]: Without dead ends: 70 [2024-11-28 02:25:14,912 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 02:25:14,916 INFO L435 NwaCegarLoop]: 99 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, 99 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 02:25:14,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:14,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-28 02:25:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-28 02:25:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:25:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2024-11-28 02:25:14,978 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 32 [2024-11-28 02:25:14,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:14,979 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2024-11-28 02:25:14,979 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 02:25:14,979 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2024-11-28 02:25:14,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 02:25:14,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:14,984 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 02:25:14,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:25:14,986 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:14,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1163022485, now seen corresponding path program 1 times [2024-11-28 02:25:14,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:14,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049284151] [2024-11-28 02:25:14,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:14,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:15,239 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 02:25:15,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:15,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049284151] [2024-11-28 02:25:15,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049284151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:15,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:15,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:25:15,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895685244] [2024-11-28 02:25:15,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:15,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:25:15,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:15,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:25:15,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:15,247 INFO L87 Difference]: Start difference. First operand 70 states and 90 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 02:25:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:15,277 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2024-11-28 02:25:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:25:15,279 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 02:25:15,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:15,280 INFO L225 Difference]: With dead ends: 106 [2024-11-28 02:25:15,280 INFO L226 Difference]: Without dead ends: 62 [2024-11-28 02:25:15,281 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 02:25:15,282 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 13 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 140 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 02:25:15,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-28 02:25:15,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-28 02:25:15,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:25:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2024-11-28 02:25:15,292 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 32 [2024-11-28 02:25:15,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:15,292 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2024-11-28 02:25:15,293 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 02:25:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2024-11-28 02:25:15,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 02:25:15,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:15,294 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 02:25:15,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:25:15,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:15,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:15,295 INFO L85 PathProgramCache]: Analyzing trace with hash -281330780, now seen corresponding path program 1 times [2024-11-28 02:25:15,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:15,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824689607] [2024-11-28 02:25:15,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:15,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:15,457 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 02:25:15,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:15,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824689607] [2024-11-28 02:25:15,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824689607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:15,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:15,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:25:15,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024228036] [2024-11-28 02:25:15,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:15,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:25:15,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:15,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:25:15,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:15,464 INFO L87 Difference]: Start difference. First operand 62 states and 79 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 02:25:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:15,514 INFO L93 Difference]: Finished difference Result 116 states and 151 transitions. [2024-11-28 02:25:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:25:15,517 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 02:25:15,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:15,518 INFO L225 Difference]: With dead ends: 116 [2024-11-28 02:25:15,518 INFO L226 Difference]: Without dead ends: 62 [2024-11-28 02:25:15,519 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 02:25:15,524 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 77 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 02:25:15,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 77 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-28 02:25:15,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-28 02:25:15,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 54 states have internal predecessors, (64), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:25:15,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2024-11-28 02:25:15,545 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 37 [2024-11-28 02:25:15,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:15,547 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2024-11-28 02:25:15,547 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 02:25:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2024-11-28 02:25:15,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 02:25:15,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:15,548 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] [2024-11-28 02:25:15,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:25:15,553 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:15,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:15,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1198976989, now seen corresponding path program 1 times [2024-11-28 02:25:15,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:15,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111723913] [2024-11-28 02:25:15,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:15,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:15,693 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 02:25:15,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:15,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111723913] [2024-11-28 02:25:15,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111723913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:15,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:15,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:25:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295933377] [2024-11-28 02:25:15,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:15,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:25:15,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:15,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:25:15,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:15,696 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 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 02:25:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:15,747 INFO L93 Difference]: Finished difference Result 159 states and 205 transitions. [2024-11-28 02:25:15,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:25:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 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 42 [2024-11-28 02:25:15,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:15,750 INFO L225 Difference]: With dead ends: 159 [2024-11-28 02:25:15,750 INFO L226 Difference]: Without dead ends: 105 [2024-11-28 02:25:15,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 02:25:15,752 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 47 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:15,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 145 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:15,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-28 02:25:15,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2024-11-28 02:25:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 80 states have (on average 1.3) internal successors, (104), 86 states have internal predecessors, (104), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-28 02:25:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2024-11-28 02:25:15,775 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 42 [2024-11-28 02:25:15,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:15,775 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2024-11-28 02:25:15,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 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 02:25:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2024-11-28 02:25:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 02:25:15,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:15,777 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 02:25:15,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:25:15,777 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:15,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash 388142001, now seen corresponding path program 1 times [2024-11-28 02:25:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:15,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668655487] [2024-11-28 02:25:15,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:15,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:15,978 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 02:25:15,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:15,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668655487] [2024-11-28 02:25:15,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668655487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:15,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:15,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:25:15,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140469635] [2024-11-28 02:25:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:15,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:25:15,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:15,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:25:15,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:25:15,982 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:25:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:16,026 INFO L93 Difference]: Finished difference Result 201 states and 258 transitions. [2024-11-28 02:25:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:25:16,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-11-28 02:25:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:16,028 INFO L225 Difference]: With dead ends: 201 [2024-11-28 02:25:16,029 INFO L226 Difference]: Without dead ends: 106 [2024-11-28 02:25:16,029 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 02:25:16,030 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:16,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-28 02:25:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-28 02:25:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 89 states have internal predecessors, (107), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-28 02:25:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 133 transitions. [2024-11-28 02:25:16,045 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 133 transitions. Word has length 46 [2024-11-28 02:25:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:16,046 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 133 transitions. [2024-11-28 02:25:16,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:25:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 133 transitions. [2024-11-28 02:25:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 02:25:16,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:16,048 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 02:25:16,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:25:16,048 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:16,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1200205901, now seen corresponding path program 1 times [2024-11-28 02:25:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:16,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607060156] [2024-11-28 02:25:16,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:16,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:16,176 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 02:25:16,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:16,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607060156] [2024-11-28 02:25:16,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607060156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:16,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:16,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:25:16,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543184938] [2024-11-28 02:25:16,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:16,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:25:16,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:16,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:25:16,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:25:16,178 INFO L87 Difference]: Start difference. First operand 106 states and 133 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:25:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:16,208 INFO L93 Difference]: Finished difference Result 206 states and 265 transitions. [2024-11-28 02:25:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:25:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-11-28 02:25:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:16,209 INFO L225 Difference]: With dead ends: 206 [2024-11-28 02:25:16,210 INFO L226 Difference]: Without dead ends: 108 [2024-11-28 02:25:16,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:25:16,211 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:16,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:16,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-28 02:25:16,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-28 02:25:16,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 85 states have (on average 1.2823529411764707) internal successors, (109), 91 states have internal predecessors, (109), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-28 02:25:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-11-28 02:25:16,232 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 46 [2024-11-28 02:25:16,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:16,232 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-11-28 02:25:16,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:25:16,232 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-11-28 02:25:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 02:25:16,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:16,234 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 02:25:16,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:25:16,234 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:16,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:16,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1405817653, now seen corresponding path program 1 times [2024-11-28 02:25:16,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:16,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173766765] [2024-11-28 02:25:16,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:16,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:16,436 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 02:25:16,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:16,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173766765] [2024-11-28 02:25:16,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173766765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:16,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:16,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:25:16,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594006281] [2024-11-28 02:25:16,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:16,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:25:16,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:16,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:25:16,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:16,442 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 02:25:16,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:16,504 INFO L93 Difference]: Finished difference Result 256 states and 324 transitions. [2024-11-28 02:25:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:25:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 46 [2024-11-28 02:25:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:16,509 INFO L225 Difference]: With dead ends: 256 [2024-11-28 02:25:16,509 INFO L226 Difference]: Without dead ends: 156 [2024-11-28 02:25:16,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 02:25:16,515 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 39 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:16,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 145 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:16,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-28 02:25:16,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2024-11-28 02:25:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 121 states have (on average 1.2644628099173554) internal successors, (153), 128 states have internal predecessors, (153), 18 states have call successors, (18), 15 states have call predecessors, (18), 14 states have return successors, (20), 17 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-28 02:25:16,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 191 transitions. [2024-11-28 02:25:16,561 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 191 transitions. Word has length 46 [2024-11-28 02:25:16,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:16,562 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 191 transitions. [2024-11-28 02:25:16,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 02:25:16,562 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 191 transitions. [2024-11-28 02:25:16,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 02:25:16,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:16,564 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] [2024-11-28 02:25:16,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:25:16,564 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:16,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:16,565 INFO L85 PathProgramCache]: Analyzing trace with hash -325660597, now seen corresponding path program 1 times [2024-11-28 02:25:16,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:16,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565978406] [2024-11-28 02:25:16,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:16,822 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 02:25:16,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:16,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565978406] [2024-11-28 02:25:16,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565978406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:16,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:16,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:25:16,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122711769] [2024-11-28 02:25:16,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:16,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:25:16,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:16,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:25:16,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:25:16,827 INFO L87 Difference]: Start difference. First operand 154 states and 191 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:25:17,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:17,001 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2024-11-28 02:25:17,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:25:17,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-28 02:25:17,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:17,005 INFO L225 Difference]: With dead ends: 298 [2024-11-28 02:25:17,005 INFO L226 Difference]: Without dead ends: 152 [2024-11-28 02:25:17,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:25:17,008 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 30 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:17,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 332 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:25:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-28 02:25:17,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-28 02:25:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 126 states have internal predecessors, (147), 18 states have call successors, (18), 15 states have call predecessors, (18), 14 states have return successors, (20), 17 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-28 02:25:17,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2024-11-28 02:25:17,046 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 48 [2024-11-28 02:25:17,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:17,046 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2024-11-28 02:25:17,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:25:17,047 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2024-11-28 02:25:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 02:25:17,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:17,049 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:17,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:25:17,049 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:17,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:17,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1996477915, now seen corresponding path program 1 times [2024-11-28 02:25:17,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:17,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768563987] [2024-11-28 02:25:17,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:17,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:17,458 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 02:25:17,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768563987] [2024-11-28 02:25:17,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768563987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:17,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:17,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:25:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471122120] [2024-11-28 02:25:17,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:17,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:25:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:17,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:25:17,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:25:17,462 INFO L87 Difference]: Start difference. First operand 152 states and 185 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:25:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:17,913 INFO L93 Difference]: Finished difference Result 478 states and 617 transitions. [2024-11-28 02:25:17,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:25:17,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2024-11-28 02:25:17,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:17,919 INFO L225 Difference]: With dead ends: 478 [2024-11-28 02:25:17,919 INFO L226 Difference]: Without dead ends: 379 [2024-11-28 02:25:17,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:25:17,922 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 322 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:17,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 442 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:25:17,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-28 02:25:17,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 373. [2024-11-28 02:25:17,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 292 states have (on average 1.2157534246575343) internal successors, (355), 310 states have internal predecessors, (355), 43 states have call successors, (43), 33 states have call predecessors, (43), 37 states have return successors, (62), 41 states have call predecessors, (62), 43 states have call successors, (62) [2024-11-28 02:25:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 460 transitions. [2024-11-28 02:25:17,997 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 460 transitions. Word has length 50 [2024-11-28 02:25:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:17,997 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 460 transitions. [2024-11-28 02:25:17,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:25:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 460 transitions. [2024-11-28 02:25:18,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 02:25:18,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:18,001 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:18,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:25:18,001 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:18,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:18,002 INFO L85 PathProgramCache]: Analyzing trace with hash 497881586, now seen corresponding path program 1 times [2024-11-28 02:25:18,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:18,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455414449] [2024-11-28 02:25:18,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:18,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:18,266 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:25:18,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:18,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455414449] [2024-11-28 02:25:18,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455414449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:25:18,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146099551] [2024-11-28 02:25:18,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:18,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:25:18,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:25:18,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:25:18,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:25:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:18,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:25:18,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:25:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:25:18,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:25:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 02:25:18,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146099551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:25:18,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:25:18,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-28 02:25:18,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428901156] [2024-11-28 02:25:18,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:25:18,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:25:18,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:18,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:25:18,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:25:18,889 INFO L87 Difference]: Start difference. First operand 373 states and 460 transitions. Second operand has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 02:25:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:19,290 INFO L93 Difference]: Finished difference Result 601 states and 766 transitions. [2024-11-28 02:25:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:25:19,290 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 81 [2024-11-28 02:25:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:19,291 INFO L225 Difference]: With dead ends: 601 [2024-11-28 02:25:19,291 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:25:19,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 157 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:25:19,294 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 266 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:19,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 599 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:25:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:25:19,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:25:19,295 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 02:25:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:25:19,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2024-11-28 02:25:19,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:19,296 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:25:19,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 02:25:19,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:25:19,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:25:19,299 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:25:19,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:25:19,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:25:19,506 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:19,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:25:22,263 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:25:22,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:25:22 BoogieIcfgContainer [2024-11-28 02:25:22,287 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:25:22,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:25:22,288 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:25:22,288 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:25:22,289 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:14" (3/4) ... [2024-11-28 02:25:22,292 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:25:22,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-28 02:25:22,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-28 02:25:22,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-28 02:25:22,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-28 02:25:22,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-28 02:25:22,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-28 02:25:22,309 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-28 02:25:22,310 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 02:25:22,310 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:25:22,311 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:25:22,311 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:25:22,435 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:25:22,437 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:25:22,437 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:25:22,438 INFO L158 Benchmark]: Toolchain (without parser) took 9199.53ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.5MB in the beginning and 271.1MB in the end (delta: -152.6MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. [2024-11-28 02:25:22,440 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:25:22,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.11ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 100.0MB in the end (delta: 18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:25:22,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.59ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:25:22,442 INFO L158 Benchmark]: Boogie Preprocessor took 67.33ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:25:22,443 INFO L158 Benchmark]: RCFGBuilder took 466.54ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 80.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:25:22,444 INFO L158 Benchmark]: TraceAbstraction took 7865.74ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 79.8MB in the beginning and 279.5MB in the end (delta: -199.7MB). Peak memory consumption was 223.9MB. Max. memory is 16.1GB. [2024-11-28 02:25:22,444 INFO L158 Benchmark]: Witness Printer took 149.35ms. Allocated memory is still 427.8MB. Free memory was 279.5MB in the beginning and 271.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:25:22,446 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.11ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 100.0MB in the end (delta: 18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.59ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 98.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.33ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.54ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 80.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7865.74ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 79.8MB in the beginning and 279.5MB in the end (delta: -199.7MB). Peak memory consumption was 223.9MB. Max. memory is 16.1GB. * Witness Printer took 149.35ms. Allocated memory is still 427.8MB. Free memory was 279.5MB in the beginning and 271.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] - GenericResultAtLocation [Line: 462]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] - GenericResultAtLocation [Line: 802]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] * 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: 92]: 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 7 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 799 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 786 mSDsluCounter, 2494 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1589 mSDsCounter, 156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 366 IncrementalHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 156 mSolverCounterUnsat, 905 mSDtfsCounter, 366 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 182 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=373occurred in iteration=9, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 541 NumberOfCodeBlocks, 541 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 1242 SizeOfPredicates, 2 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 92/114 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: 576]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((((((((1 == systemActive) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 02:25:22,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e63d9f2-439e-4a92-a76e-4ad233407a02/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