./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC --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 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:30:07,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:30:07,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:30:07,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:30:07,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:30:07,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:30:07,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:30:07,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:30:07,788 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:30:07,789 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:30:07,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:30:07,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:30:07,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:30:07,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:30:07,791 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:30:07,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:30:07,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:30:07,791 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:30:07,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:30:07,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:30:07,792 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:30:07,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:30:07,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:30:07,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:30:07,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:30:07,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:30:07,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:30:07,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:30:07,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:30:07,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:30:07,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:30:07,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:30:07,795 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_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC 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 -> 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 [2024-11-23 18:30:08,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:30:08,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:30:08,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:30:08,121 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:30:08,122 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:30:08,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2024-11-23 18:30:10,977 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/data/111cf70dd/074757d924154e52b81e205af718895f/FLAGe556f9cb4 [2024-11-23 18:30:11,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:30:11,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2024-11-23 18:30:11,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/data/111cf70dd/074757d924154e52b81e205af718895f/FLAGe556f9cb4 [2024-11-23 18:30:11,355 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/data/111cf70dd/074757d924154e52b81e205af718895f [2024-11-23 18:30:11,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:30:11,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:30:11,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:30:11,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:30:11,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:30:11,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a152fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11, skipping insertion in model container [2024-11-23 18:30:11,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:30:11,721 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_f5a5e976-4e6d-4007-9e78-56074f639ffc/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2024-11-23 18:30:11,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:30:11,741 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:30:11,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-23 18:30:11,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2024-11-23 18:30:11,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] [2024-11-23 18:30:11,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [554] [2024-11-23 18:30:11,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [619] [2024-11-23 18:30:11,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [718] [2024-11-23 18:30:11,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [874] [2024-11-23 18:30:11,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [883] [2024-11-23 18:30:11,847 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_f5a5e976-4e6d-4007-9e78-56074f639ffc/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2024-11-23 18:30:11,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:30:11,866 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:30:11,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11 WrapperNode [2024-11-23 18:30:11,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:30:11,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:30:11,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:30:11,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:30:11,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,922 INFO L138 Inliner]: procedures = 52, calls = 93, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 169 [2024-11-23 18:30:11,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:30:11,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:30:11,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:30:11,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:30:11,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,965 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]. [2024-11-23 18:30:11,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,972 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:30:11,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:30:11,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:30:11,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:30:11,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (1/1) ... [2024-11-23 18:30:11,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:30:12,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:30:12,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:30:12,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:30:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:30:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-23 18:30:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-23 18:30:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-23 18:30:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-23 18:30:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-23 18:30:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-23 18:30:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-23 18:30:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-23 18:30:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:30:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-23 18:30:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-23 18:30:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:30:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:30:12,125 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:30:12,127 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:30:12,366 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-23 18:30:12,367 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:30:12,380 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:30:12,381 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 18:30:12,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:30:12 BoogieIcfgContainer [2024-11-23 18:30:12,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:30:12,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:30:12,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:30:12,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:30:12,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:30:11" (1/3) ... [2024-11-23 18:30:12,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6759c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:30:12, skipping insertion in model container [2024-11-23 18:30:12,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:30:11" (2/3) ... [2024-11-23 18:30:12,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6759c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:30:12, skipping insertion in model container [2024-11-23 18:30:12,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:30:12" (3/3) ... [2024-11-23 18:30:12,389 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2024-11-23 18:30:12,402 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:30:12,404 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product33.cil.c that has 6 procedures, 68 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 18:30:12,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:30:12,470 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;@616822cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:30:12,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:30:12,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 59 states have internal predecessors, (76), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-23 18:30:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 18:30:12,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:12,482 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:12,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:12,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:12,487 INFO L85 PathProgramCache]: Analyzing trace with hash 83798166, now seen corresponding path program 1 times [2024-11-23 18:30:12,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:12,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446127394] [2024-11-23 18:30:12,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:12,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:12,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:12,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:12,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446127394] [2024-11-23 18:30:12,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446127394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:12,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:12,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:30:12,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197223754] [2024-11-23 18:30:12,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:12,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:30:12,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:12,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:30:12,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:30:12,723 INFO L87 Difference]: Start difference. First operand has 68 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 59 states have internal predecessors, (76), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:12,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:12,755 INFO L93 Difference]: Finished difference Result 128 states and 179 transitions. [2024-11-23 18:30:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:30:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-23 18:30:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:12,766 INFO L225 Difference]: With dead ends: 128 [2024-11-23 18:30:12,768 INFO L226 Difference]: Without dead ends: 59 [2024-11-23 18:30:12,772 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 [2024-11-23 18:30:12,775 INFO L435 NwaCegarLoop]: 86 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, 86 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 [2024-11-23 18:30:12,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:12,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-23 18:30:12,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-23 18:30:12,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 18:30:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 77 transitions. [2024-11-23 18:30:12,822 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 77 transitions. Word has length 19 [2024-11-23 18:30:12,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:12,822 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 77 transitions. [2024-11-23 18:30:12,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:12,823 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2024-11-23 18:30:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 18:30:12,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:12,824 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:12,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:30:12,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:12,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash 858294480, now seen corresponding path program 1 times [2024-11-23 18:30:12,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:12,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909757084] [2024-11-23 18:30:12,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:12,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:12,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:12,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909757084] [2024-11-23 18:30:12,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909757084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:12,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:12,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:30:12,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168817366] [2024-11-23 18:30:12,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:12,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:30:12,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:12,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:30:12,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:30:12,992 INFO L87 Difference]: Start difference. First operand 59 states and 77 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:13,009 INFO L93 Difference]: Finished difference Result 86 states and 112 transitions. [2024-11-23 18:30:13,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:30:13,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-23 18:30:13,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:13,013 INFO L225 Difference]: With dead ends: 86 [2024-11-23 18:30:13,013 INFO L226 Difference]: Without dead ends: 51 [2024-11-23 18:30:13,014 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 [2024-11-23 18:30:13,015 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 12 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 115 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 [2024-11-23 18:30:13,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 115 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:13,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-23 18:30:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-23 18:30:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 46 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 18:30:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2024-11-23 18:30:13,027 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 19 [2024-11-23 18:30:13,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:13,027 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2024-11-23 18:30:13,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2024-11-23 18:30:13,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-23 18:30:13,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:13,028 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:13,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:30:13,029 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:13,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:13,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2115614326, now seen corresponding path program 1 times [2024-11-23 18:30:13,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:13,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400648621] [2024-11-23 18:30:13,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:13,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:13,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:13,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400648621] [2024-11-23 18:30:13,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400648621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:13,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:13,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:30:13,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805671267] [2024-11-23 18:30:13,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:13,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:30:13,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:13,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:30:13,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:30:13,188 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:13,204 INFO L93 Difference]: Finished difference Result 95 states and 126 transitions. [2024-11-23 18:30:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:30:13,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-23 18:30:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:13,208 INFO L225 Difference]: With dead ends: 95 [2024-11-23 18:30:13,208 INFO L226 Difference]: Without dead ends: 51 [2024-11-23 18:30:13,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:30:13,209 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 64 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 [2024-11-23 18:30:13,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-23 18:30:13,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-23 18:30:13,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 46 states have internal predecessors, (55), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 18:30:13,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2024-11-23 18:30:13,222 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 23 [2024-11-23 18:30:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:13,222 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2024-11-23 18:30:13,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2024-11-23 18:30:13,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-23 18:30:13,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:13,224 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:13,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:30:13,224 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:13,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:13,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1153939895, now seen corresponding path program 1 times [2024-11-23 18:30:13,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:13,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474062953] [2024-11-23 18:30:13,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:13,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:13,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:13,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:13,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474062953] [2024-11-23 18:30:13,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474062953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:13,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:13,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:30:13,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775417855] [2024-11-23 18:30:13,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:13,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:30:13,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:13,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:30:13,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:30:13,312 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:30:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:13,372 INFO L93 Difference]: Finished difference Result 128 states and 168 transitions. [2024-11-23 18:30:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:30:13,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-11-23 18:30:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:13,374 INFO L225 Difference]: With dead ends: 128 [2024-11-23 18:30:13,374 INFO L226 Difference]: Without dead ends: 84 [2024-11-23 18:30:13,374 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 [2024-11-23 18:30:13,375 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 54 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 116 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 [2024-11-23 18:30:13,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 116 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:13,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-23 18:30:13,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2024-11-23 18:30:13,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 71 states have internal predecessors, (87), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-23 18:30:13,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 105 transitions. [2024-11-23 18:30:13,401 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 105 transitions. Word has length 28 [2024-11-23 18:30:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:13,405 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 105 transitions. [2024-11-23 18:30:13,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:30:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 105 transitions. [2024-11-23 18:30:13,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-23 18:30:13,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:13,407 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:13,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:30:13,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:13,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:13,407 INFO L85 PathProgramCache]: Analyzing trace with hash 394397160, now seen corresponding path program 1 times [2024-11-23 18:30:13,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:13,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958403232] [2024-11-23 18:30:13,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:13,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:13,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:13,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:13,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958403232] [2024-11-23 18:30:13,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958403232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:13,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:13,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:30:13,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713386140] [2024-11-23 18:30:13,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:13,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:30:13,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:13,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:30:13,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:30:13,568 INFO L87 Difference]: Start difference. First operand 82 states and 105 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:13,628 INFO L93 Difference]: Finished difference Result 222 states and 300 transitions. [2024-11-23 18:30:13,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:30:13,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-23 18:30:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:13,631 INFO L225 Difference]: With dead ends: 222 [2024-11-23 18:30:13,631 INFO L226 Difference]: Without dead ends: 147 [2024-11-23 18:30:13,632 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 [2024-11-23 18:30:13,632 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:13,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 113 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:13,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-23 18:30:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2024-11-23 18:30:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 124 states have internal predecessors, (155), 15 states have call successors, (15), 15 states have call predecessors, (15), 13 states have return successors, (21), 13 states have call predecessors, (21), 15 states have call successors, (21) [2024-11-23 18:30:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 191 transitions. [2024-11-23 18:30:13,656 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 191 transitions. Word has length 32 [2024-11-23 18:30:13,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:13,656 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 191 transitions. [2024-11-23 18:30:13,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 191 transitions. [2024-11-23 18:30:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-23 18:30:13,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:13,658 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:13,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:30:13,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:13,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:13,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1405514410, now seen corresponding path program 1 times [2024-11-23 18:30:13,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:13,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360270194] [2024-11-23 18:30:13,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:13,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:13,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:13,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360270194] [2024-11-23 18:30:13,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360270194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:13,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:13,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:30:13,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403009507] [2024-11-23 18:30:13,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:13,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:30:13,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:13,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:30:13,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:30:13,754 INFO L87 Difference]: Start difference. First operand 145 states and 191 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:13,812 INFO L93 Difference]: Finished difference Result 289 states and 388 transitions. [2024-11-23 18:30:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:30:13,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-23 18:30:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:13,814 INFO L225 Difference]: With dead ends: 289 [2024-11-23 18:30:13,814 INFO L226 Difference]: Without dead ends: 151 [2024-11-23 18:30:13,815 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 [2024-11-23 18:30:13,820 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 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 [2024-11-23 18:30:13,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-23 18:30:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-23 18:30:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 122 states have (on average 1.319672131147541) internal successors, (161), 130 states have internal predecessors, (161), 15 states have call successors, (15), 15 states have call predecessors, (15), 13 states have return successors, (21), 13 states have call predecessors, (21), 15 states have call successors, (21) [2024-11-23 18:30:13,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 197 transitions. [2024-11-23 18:30:13,852 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 197 transitions. Word has length 32 [2024-11-23 18:30:13,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:13,853 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 197 transitions. [2024-11-23 18:30:13,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:13,853 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 197 transitions. [2024-11-23 18:30:13,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-23 18:30:13,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:13,854 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:13,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:30:13,858 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:13,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1663679848, now seen corresponding path program 1 times [2024-11-23 18:30:13,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:13,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905865210] [2024-11-23 18:30:13,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:13,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:13,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:13,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905865210] [2024-11-23 18:30:13,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905865210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:13,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:13,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:30:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307306563] [2024-11-23 18:30:13,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:13,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:30:13,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:13,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:30:13,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:30:13,989 INFO L87 Difference]: Start difference. First operand 151 states and 197 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:14,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:14,026 INFO L93 Difference]: Finished difference Result 267 states and 352 transitions. [2024-11-23 18:30:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:30:14,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-23 18:30:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:14,029 INFO L225 Difference]: With dead ends: 267 [2024-11-23 18:30:14,029 INFO L226 Difference]: Without dead ends: 123 [2024-11-23 18:30:14,030 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 [2024-11-23 18:30:14,031 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 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 [2024-11-23 18:30:14,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:14,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-23 18:30:14,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-23 18:30:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 99 states have (on average 1.292929292929293) internal successors, (128), 106 states have internal predecessors, (128), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (14), 11 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-23 18:30:14,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 154 transitions. [2024-11-23 18:30:14,053 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 154 transitions. Word has length 32 [2024-11-23 18:30:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:14,053 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 154 transitions. [2024-11-23 18:30:14,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:30:14,053 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 154 transitions. [2024-11-23 18:30:14,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-23 18:30:14,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:14,057 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:14,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:30:14,058 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:14,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:14,058 INFO L85 PathProgramCache]: Analyzing trace with hash -888927039, now seen corresponding path program 1 times [2024-11-23 18:30:14,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:14,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724644272] [2024-11-23 18:30:14,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:14,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:14,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:14,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724644272] [2024-11-23 18:30:14,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724644272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:14,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:14,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:30:14,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324187945] [2024-11-23 18:30:14,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:14,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:30:14,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:14,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:30:14,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:30:14,187 INFO L87 Difference]: Start difference. First operand 123 states and 154 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:30:14,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:14,262 INFO L93 Difference]: Finished difference Result 237 states and 299 transitions. [2024-11-23 18:30:14,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:30:14,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-11-23 18:30:14,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:14,266 INFO L225 Difference]: With dead ends: 237 [2024-11-23 18:30:14,266 INFO L226 Difference]: Without dead ends: 121 [2024-11-23 18:30:14,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:30:14,267 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 19 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:14,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 229 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:14,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-23 18:30:14,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-23 18:30:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 104 states have internal predecessors, (124), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (14), 11 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-23 18:30:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2024-11-23 18:30:14,292 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 34 [2024-11-23 18:30:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:14,293 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2024-11-23 18:30:14,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:30:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2024-11-23 18:30:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-23 18:30:14,294 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:14,294 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:14,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:30:14,294 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:14,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:14,295 INFO L85 PathProgramCache]: Analyzing trace with hash -239479360, now seen corresponding path program 1 times [2024-11-23 18:30:14,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:14,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955513538] [2024-11-23 18:30:14,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:14,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:14,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:14,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955513538] [2024-11-23 18:30:14,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955513538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:14,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:14,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:30:14,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729433238] [2024-11-23 18:30:14,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:14,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:30:14,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:14,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:30:14,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:30:14,432 INFO L87 Difference]: Start difference. First operand 121 states and 150 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:30:14,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:14,528 INFO L93 Difference]: Finished difference Result 261 states and 349 transitions. [2024-11-23 18:30:14,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:30:14,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-11-23 18:30:14,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:14,530 INFO L225 Difference]: With dead ends: 261 [2024-11-23 18:30:14,532 INFO L226 Difference]: Without dead ends: 181 [2024-11-23 18:30:14,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:30:14,533 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 38 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:14,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 350 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:30:14,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-23 18:30:14,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-23 18:30:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 143 states have (on average 1.2657342657342658) internal successors, (181), 153 states have internal predecessors, (181), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (30), 18 states have call predecessors, (30), 19 states have call successors, (30) [2024-11-23 18:30:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 230 transitions. [2024-11-23 18:30:14,560 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 230 transitions. Word has length 36 [2024-11-23 18:30:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:14,561 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 230 transitions. [2024-11-23 18:30:14,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:30:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 230 transitions. [2024-11-23 18:30:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-23 18:30:14,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:14,565 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:14,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:30:14,566 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:14,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash 852210523, now seen corresponding path program 1 times [2024-11-23 18:30:14,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:14,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648315431] [2024-11-23 18:30:14,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:14,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:14,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:14,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648315431] [2024-11-23 18:30:14,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648315431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:30:14,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:30:14,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:30:14,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924738262] [2024-11-23 18:30:14,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:30:14,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:30:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:14,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:30:14,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:30:14,678 INFO L87 Difference]: Start difference. First operand 181 states and 230 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-23 18:30:14,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:14,772 INFO L93 Difference]: Finished difference Result 183 states and 231 transitions. [2024-11-23 18:30:14,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:30:14,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 38 [2024-11-23 18:30:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:14,775 INFO L225 Difference]: With dead ends: 183 [2024-11-23 18:30:14,775 INFO L226 Difference]: Without dead ends: 181 [2024-11-23 18:30:14,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:30:14,776 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 41 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:14,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 222 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:30:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-23 18:30:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-23 18:30:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 143 states have (on average 1.2587412587412588) internal successors, (180), 153 states have internal predecessors, (180), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (30), 18 states have call predecessors, (30), 19 states have call successors, (30) [2024-11-23 18:30:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 229 transitions. [2024-11-23 18:30:14,805 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 229 transitions. Word has length 38 [2024-11-23 18:30:14,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:14,805 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 229 transitions. [2024-11-23 18:30:14,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-11-23 18:30:14,805 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 229 transitions. [2024-11-23 18:30:14,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-23 18:30:14,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:14,808 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:14,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:30:14,808 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:14,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash 46516708, now seen corresponding path program 1 times [2024-11-23 18:30:14,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:14,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036622426] [2024-11-23 18:30:14,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:15,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:30:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036622426] [2024-11-23 18:30:15,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036622426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:30:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816923633] [2024-11-23 18:30:15,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:30:15,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:30:15,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:30:15,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:30:15,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:30:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:30:15,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 18:30:15,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:30:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:15,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:30:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:30:15,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816923633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:30:15,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:30:15,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-23 18:30:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983816746] [2024-11-23 18:30:15,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:30:15,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:30:15,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:30:15,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:30:15,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:30:15,406 INFO L87 Difference]: Start difference. First operand 181 states and 229 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 18:30:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:30:15,565 INFO L93 Difference]: Finished difference Result 415 states and 560 transitions. [2024-11-23 18:30:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:30:15,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2024-11-23 18:30:15,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:30:15,569 INFO L225 Difference]: With dead ends: 415 [2024-11-23 18:30:15,573 INFO L226 Difference]: Without dead ends: 275 [2024-11-23 18:30:15,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 114 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:30:15,575 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 65 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:30:15,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 364 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:30:15,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-23 18:30:15,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2024-11-23 18:30:15,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 195 states have (on average 1.2666666666666666) internal successors, (247), 209 states have internal predecessors, (247), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (46), 24 states have call predecessors, (46), 27 states have call successors, (46) [2024-11-23 18:30:15,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 320 transitions. [2024-11-23 18:30:15,611 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 320 transitions. Word has length 59 [2024-11-23 18:30:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:30:15,612 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 320 transitions. [2024-11-23 18:30:15,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 18:30:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 320 transitions. [2024-11-23 18:30:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-23 18:30:15,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:30:15,613 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:15,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:30:15,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:30:15,814 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:30:15,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:30:15,814 INFO L85 PathProgramCache]: Analyzing trace with hash -507548352, now seen corresponding path program 2 times [2024-11-23 18:30:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:30:15,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521709527] [2024-11-23 18:30:15,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 18:30:15,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:30:15,857 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 18:30:15,857 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 18:30:15,857 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:30:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:30:15,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:30:15,917 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:30:15,918 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 18:30:15,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:30:15,924 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:30:16,000 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:30:16,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:30:16 BoogieIcfgContainer [2024-11-23 18:30:16,007 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:30:16,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:30:16,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:30:16,008 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:30:16,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:30:12" (3/4) ... [2024-11-23 18:30:16,010 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-23 18:30:16,128 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 74. [2024-11-23 18:30:16,225 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:30:16,225 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:30:16,226 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:30:16,226 INFO L158 Benchmark]: Toolchain (without parser) took 4868.15ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 99.4MB in the beginning and 295.0MB in the end (delta: -195.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-23 18:30:16,227 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:30:16,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.33ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 81.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:30:16,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.95ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:30:16,227 INFO L158 Benchmark]: Boogie Preprocessor took 58.40ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 77.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:30:16,228 INFO L158 Benchmark]: RCFGBuilder took 396.86ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 62.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:30:16,228 INFO L158 Benchmark]: TraceAbstraction took 3624.27ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 61.7MB in the beginning and 305.9MB in the end (delta: -244.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:30:16,228 INFO L158 Benchmark]: Witness Printer took 217.57ms. Allocated memory is still 343.9MB. Free memory was 305.9MB in the beginning and 295.0MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:30:16,230 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.33ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 81.0MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.95ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 79.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.40ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 77.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 396.86ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 62.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3624.27ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 61.7MB in the beginning and 305.9MB in the end (delta: -244.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 217.57ms. Allocated memory is still 343.9MB. Free memory was 305.9MB in the beginning and 295.0MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [519] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [554] - GenericResultAtLocation [Line: 619]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [619] - GenericResultAtLocation [Line: 718]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [718] - GenericResultAtLocation [Line: 874]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [874] - GenericResultAtLocation [Line: 883]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [883] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 879]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L625] int waterLevel = 1; [L626] int methaneLevelCritical = 0; [L722] int pumpRunning = 0; [L723] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L577] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L643] COND TRUE waterLevel < 2 [L644] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L577] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L608] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] COND TRUE \read(systemActive) [L739] CALL processEnvironment() [L759] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L762] COND TRUE ! pumpRunning [L764] CALL, EXPR isHighWaterLevel() [L856] int retValue_acc ; [L857] int tmp ; [L858] int tmp___0 ; [L862] CALL, EXPR isHighWaterSensorDry() [L705] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] COND FALSE !(waterLevel < 2) [L712] retValue_acc = 0 [L713] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] RET, EXPR isHighWaterSensorDry() [L862] tmp = isHighWaterSensorDry() [L864] COND FALSE !(\read(tmp)) [L867] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp___0=1, waterLevel=2] [L869] retValue_acc = tmp___0 [L870] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] RET, EXPR isHighWaterLevel() [L764] tmp = isHighWaterLevel() [L766] COND TRUE \read(tmp) [L768] CALL activatePump() [L787] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L768] RET activatePump() [L739] RET processEnvironment() [L745] CALL __utac_acc__Specification4_spec__1() [L885] int tmp ; [L886] int tmp___0 ; [L890] CALL, EXPR getWaterLevel() [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] RET, EXPR getWaterLevel() [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L745] RET __utac_acc__Specification4_spec__1() [L608] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L608] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L730] COND TRUE \read(pumpRunning) [L732] CALL lowerWaterLevel() [L631] COND TRUE waterLevel > 0 [L632] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L732] RET lowerWaterLevel() [L737] COND TRUE \read(systemActive) [L739] CALL processEnvironment() [L759] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L762] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L777] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L739] RET processEnvironment() [L745] CALL __utac_acc__Specification4_spec__1() [L885] int tmp ; [L886] int tmp___0 ; [L890] CALL, EXPR getWaterLevel() [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L890] RET, EXPR getWaterLevel() [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L745] RET __utac_acc__Specification4_spec__1() [L608] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L608] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L730] COND TRUE \read(pumpRunning) [L732] CALL lowerWaterLevel() [L631] COND TRUE waterLevel > 0 [L632] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L732] RET lowerWaterLevel() [L737] COND TRUE \read(systemActive) [L739] CALL processEnvironment() [L759] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L762] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L777] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L739] RET processEnvironment() [L745] CALL __utac_acc__Specification4_spec__1() [L885] int tmp ; [L886] int tmp___0 ; [L890] CALL, EXPR getWaterLevel() [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L890] RET, EXPR getWaterLevel() [L890] tmp = getWaterLevel() [L892] COND TRUE tmp == 0 [L894] CALL, EXPR isPumpRunning() [L811] int retValue_acc ; [L814] retValue_acc = pumpRunning [L815] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L894] RET, EXPR isPumpRunning() [L894] tmp___0 = isPumpRunning() [L896] COND TRUE \read(tmp___0) [L898] CALL __automaton_fail() [L879] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 317 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 314 mSDsluCounter, 2083 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1294 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 789 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 135 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=249occurred in iteration=11, InterpolantAutomatonStates: 46, 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, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 493 NumberOfCodeBlocks, 493 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 457 ConstructedInterpolants, 0 QuantifiedInterpolants, 837 SizeOfPredicates, 2 NumberOfNonLiveVariables, 223 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 33/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-23 18:30:16,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5a5e976-4e6d-4007-9e78-56074f639ffc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE