./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.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_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/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_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/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_0a45feff-bb18-4434-a54f-89802ba27eae/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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:54:44,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:54:44,301 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:54:44,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:54:44,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:54:44,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:54:44,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:54:44,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:54:44,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:54:44,337 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:54:44,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:54:44,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:54:44,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:54:44,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:54:44,338 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:54:44,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:54:44,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:54:44,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:54:44,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:54:44,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:54:44,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:54:44,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:54:44,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:54:44,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:54:44,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:54:44,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:54:44,340 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:54:44,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:54:44,340 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:54:44,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:54:44,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:54:44,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:54:44,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:44,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:54:44,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:54:44,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:54:44,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:54:44,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:44,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:54:44,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:54:44,342 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:54:44,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:54:44,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:54:44,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:54:44,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:54:44,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:54:44,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:54:44,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:54:44,343 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_0a45feff-bb18-4434-a54f-89802ba27eae/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 -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2024-11-23 23:54:44,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:54:44,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:54:44,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:54:44,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:54:44,684 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:54:44,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2024-11-23 23:54:47,743 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/data/63cfa33e5/ed3bef63e20f4bb083ecff7ede20db4a/FLAG8eeb2586a [2024-11-23 23:54:48,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:54:48,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2024-11-23 23:54:48,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/data/63cfa33e5/ed3bef63e20f4bb083ecff7ede20db4a/FLAG8eeb2586a [2024-11-23 23:54:48,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/data/63cfa33e5/ed3bef63e20f4bb083ecff7ede20db4a [2024-11-23 23:54:48,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:54:48,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:54:48,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:48,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:54:48,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:54:48,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f24f73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48, skipping insertion in model container [2024-11-23 23:54:48,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:54:48,501 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_0a45feff-bb18-4434-a54f-89802ba27eae/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2024-11-23 23:54:48,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:48,560 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:54:48,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2024-11-23 23:54:48,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [91] [2024-11-23 23:54:48,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2024-11-23 23:54:48,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [562] [2024-11-23 23:54:48,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [571] [2024-11-23 23:54:48,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [606] [2024-11-23 23:54:48,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [671] [2024-11-23 23:54:48,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [779] [2024-11-23 23:54:48,652 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_0a45feff-bb18-4434-a54f-89802ba27eae/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2024-11-23 23:54:48,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:54:48,714 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:54:48,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48 WrapperNode [2024-11-23 23:54:48,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:54:48,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:54:48,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:54:48,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:54:48,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,771 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 222 [2024-11-23 23:54:48,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:54:48,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:54:48,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:54:48,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:54:48,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,800 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 23:54:48,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,806 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:54:48,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:54:48,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:54:48,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:54:48,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (1/1) ... [2024-11-23 23:54:48,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:54:48,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:48,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:54:48,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:54:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:54:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-23 23:54:48,916 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-23 23:54:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-23 23:54:48,916 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-23 23:54:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-23 23:54:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-23 23:54:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-23 23:54:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-23 23:54:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-23 23:54:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-23 23:54:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-23 23:54:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-23 23:54:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:54:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:54:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-23 23:54:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-23 23:54:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-23 23:54:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-23 23:54:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:54:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-23 23:54:48,920 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-23 23:54:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:54:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:54:49,009 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:54:49,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:54:49,356 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-23 23:54:49,356 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:54:49,370 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:54:49,370 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 23:54:49,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:49 BoogieIcfgContainer [2024-11-23 23:54:49,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:54:49,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:54:49,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:54:49,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:54:49,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:54:48" (1/3) ... [2024-11-23 23:54:49,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c301a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:54:49, skipping insertion in model container [2024-11-23 23:54:49,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:54:48" (2/3) ... [2024-11-23 23:54:49,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c301a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:54:49, skipping insertion in model container [2024-11-23 23:54:49,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:49" (3/3) ... [2024-11-23 23:54:49,383 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2024-11-23 23:54:49,398 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:54:49,400 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec2_product61.cil.c that has 11 procedures, 108 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 23:54:49,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:54:49,482 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;@1cf52a2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:54:49,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:54:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 88 states have internal predecessors, (108), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 23:54:49,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 23:54:49,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:49,501 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] [2024-11-23 23:54:49,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:49,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:49,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1932441960, now seen corresponding path program 1 times [2024-11-23 23:54:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:49,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103369888] [2024-11-23 23:54:49,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:49,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:49,917 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 23:54:49,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:49,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103369888] [2024-11-23 23:54:49,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103369888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:49,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:49,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:49,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745504948] [2024-11-23 23:54:49,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:49,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:49,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:49,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:49,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:49,961 INFO L87 Difference]: Start difference. First operand has 108 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 88 states have internal predecessors, (108), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:50,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:50,029 INFO L93 Difference]: Finished difference Result 195 states and 262 transitions. [2024-11-23 23:54:50,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:50,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-23 23:54:50,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:50,041 INFO L225 Difference]: With dead ends: 195 [2024-11-23 23:54:50,042 INFO L226 Difference]: Without dead ends: 91 [2024-11-23 23:54:50,046 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 23:54:50,049 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 12 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 227 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 23:54:50,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:50,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-23 23:54:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-23 23:54:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 66 states have (on average 1.3333333333333333) internal successors, (88), 75 states have internal predecessors, (88), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 23:54:50,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 118 transitions. [2024-11-23 23:54:50,102 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 118 transitions. Word has length 25 [2024-11-23 23:54:50,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:50,103 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 118 transitions. [2024-11-23 23:54:50,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:54:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2024-11-23 23:54:50,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 23:54:50,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:50,106 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] [2024-11-23 23:54:50,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:54:50,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:50,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:50,107 INFO L85 PathProgramCache]: Analyzing trace with hash -699035390, now seen corresponding path program 1 times [2024-11-23 23:54:50,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:50,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948338601] [2024-11-23 23:54:50,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:50,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:50,276 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 23:54:50,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:50,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948338601] [2024-11-23 23:54:50,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948338601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:50,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:50,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:50,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636961754] [2024-11-23 23:54:50,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:50,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:50,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:50,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:50,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:50,279 INFO L87 Difference]: Start difference. First operand 91 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 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 23:54:50,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:50,318 INFO L93 Difference]: Finished difference Result 174 states and 229 transitions. [2024-11-23 23:54:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:50,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 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 29 [2024-11-23 23:54:50,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:50,324 INFO L225 Difference]: With dead ends: 174 [2024-11-23 23:54:50,325 INFO L226 Difference]: Without dead ends: 91 [2024-11-23 23:54:50,326 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 23:54:50,329 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 100 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 116 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 23:54:50,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 116 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:50,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-23 23:54:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-23 23:54:50,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 75 states have internal predecessors, (87), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 23:54:50,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 117 transitions. [2024-11-23 23:54:50,360 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 117 transitions. Word has length 29 [2024-11-23 23:54:50,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:50,363 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 117 transitions. [2024-11-23 23:54:50,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 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 23:54:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 117 transitions. [2024-11-23 23:54:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-23 23:54:50,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:50,366 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, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:50,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:54:50,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:50,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1642373201, now seen corresponding path program 1 times [2024-11-23 23:54:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:50,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065565362] [2024-11-23 23:54:50,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:50,581 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 23:54:50,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:50,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065565362] [2024-11-23 23:54:50,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065565362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:50,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:50,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:54:50,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911747052] [2024-11-23 23:54:50,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:50,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:54:50,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:50,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:54:50,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:54:50,584 INFO L87 Difference]: Start difference. First operand 91 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:54:51,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:51,089 INFO L93 Difference]: Finished difference Result 261 states and 335 transitions. [2024-11-23 23:54:51,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:54:51,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-23 23:54:51,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:51,092 INFO L225 Difference]: With dead ends: 261 [2024-11-23 23:54:51,092 INFO L226 Difference]: Without dead ends: 178 [2024-11-23 23:54:51,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:54:51,097 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 221 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:51,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 307 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:54:51,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-23 23:54:51,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2024-11-23 23:54:51,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 126 states have (on average 1.2619047619047619) internal successors, (159), 135 states have internal predecessors, (159), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:54:51,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 210 transitions. [2024-11-23 23:54:51,136 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 210 transitions. Word has length 44 [2024-11-23 23:54:51,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:51,137 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 210 transitions. [2024-11-23 23:54:51,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:54:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 210 transitions. [2024-11-23 23:54:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 23:54:51,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:51,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:51,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:54:51,139 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:51,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:51,140 INFO L85 PathProgramCache]: Analyzing trace with hash -172020711, now seen corresponding path program 1 times [2024-11-23 23:54:51,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:51,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100293401] [2024-11-23 23:54:51,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:51,398 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 23:54:51,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100293401] [2024-11-23 23:54:51,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100293401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:51,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:51,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:54:51,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087283398] [2024-11-23 23:54:51,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:51,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:54:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:51,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:54:51,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:54:51,400 INFO L87 Difference]: Start difference. First operand 172 states and 210 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:54:51,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:51,812 INFO L93 Difference]: Finished difference Result 336 states and 412 transitions. [2024-11-23 23:54:51,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:54:51,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2024-11-23 23:54:51,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:51,815 INFO L225 Difference]: With dead ends: 336 [2024-11-23 23:54:51,815 INFO L226 Difference]: Without dead ends: 172 [2024-11-23 23:54:51,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:54:51,821 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 140 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:51,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 394 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:54:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-23 23:54:51,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2024-11-23 23:54:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 133 states have internal predecessors, (153), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:54:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 204 transitions. [2024-11-23 23:54:51,865 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 204 transitions. Word has length 50 [2024-11-23 23:54:51,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:51,866 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 204 transitions. [2024-11-23 23:54:51,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:54:51,866 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 204 transitions. [2024-11-23 23:54:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-23 23:54:51,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:51,868 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:51,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:54:51,872 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:51,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1133539689, now seen corresponding path program 1 times [2024-11-23 23:54:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686915141] [2024-11-23 23:54:51,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:54:52,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:52,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686915141] [2024-11-23 23:54:52,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686915141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:52,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:52,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:54:52,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468784024] [2024-11-23 23:54:52,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:52,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:54:52,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:52,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:54:52,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:54:52,023 INFO L87 Difference]: Start difference. First operand 170 states and 204 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:54:52,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:52,088 INFO L93 Difference]: Finished difference Result 335 states and 412 transitions. [2024-11-23 23:54:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:54:52,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-23 23:54:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:52,091 INFO L225 Difference]: With dead ends: 335 [2024-11-23 23:54:52,091 INFO L226 Difference]: Without dead ends: 173 [2024-11-23 23:54:52,091 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 23:54:52,092 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:52,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 450 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-23 23:54:52,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-23 23:54:52,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 127 states have (on average 1.2283464566929134) internal successors, (156), 136 states have internal predecessors, (156), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:54:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 207 transitions. [2024-11-23 23:54:52,117 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 207 transitions. Word has length 60 [2024-11-23 23:54:52,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:52,117 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 207 transitions. [2024-11-23 23:54:52,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:54:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 207 transitions. [2024-11-23 23:54:52,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-23 23:54:52,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:52,119 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:52,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:54:52,120 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:52,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1061153131, now seen corresponding path program 1 times [2024-11-23 23:54:52,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:52,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10261961] [2024-11-23 23:54:52,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:52,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:54:52,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:52,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10261961] [2024-11-23 23:54:52,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10261961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:52,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:52,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:54:52,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785778181] [2024-11-23 23:54:52,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:52,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:54:52,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:52,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:54:52,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:54:52,271 INFO L87 Difference]: Start difference. First operand 173 states and 207 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:54:52,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:52,307 INFO L93 Difference]: Finished difference Result 340 states and 417 transitions. [2024-11-23 23:54:52,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:54:52,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-23 23:54:52,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:52,310 INFO L225 Difference]: With dead ends: 340 [2024-11-23 23:54:52,310 INFO L226 Difference]: Without dead ends: 175 [2024-11-23 23:54:52,311 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 23:54:52,312 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 339 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 23:54:52,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 339 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:52,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-23 23:54:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-23 23:54:52,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.2248062015503876) internal successors, (158), 138 states have internal predecessors, (158), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:54:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2024-11-23 23:54:52,336 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 60 [2024-11-23 23:54:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:52,336 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2024-11-23 23:54:52,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:54:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2024-11-23 23:54:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-23 23:54:52,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:52,338 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:52,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:54:52,338 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:52,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash 217147629, now seen corresponding path program 1 times [2024-11-23 23:54:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852831648] [2024-11-23 23:54:52,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:54:52,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:52,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852831648] [2024-11-23 23:54:52,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852831648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:52,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:52,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:54:52,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212450577] [2024-11-23 23:54:52,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:52,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:54:52,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:52,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:54:52,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:54:52,490 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-23 23:54:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:52,705 INFO L93 Difference]: Finished difference Result 525 states and 651 transitions. [2024-11-23 23:54:52,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:54:52,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2024-11-23 23:54:52,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:52,713 INFO L225 Difference]: With dead ends: 525 [2024-11-23 23:54:52,715 INFO L226 Difference]: Without dead ends: 358 [2024-11-23 23:54:52,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 23:54:52,717 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 141 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:52,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 380 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:54:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-23 23:54:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 351. [2024-11-23 23:54:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 257 states have (on average 1.2140077821011672) internal successors, (312), 273 states have internal predecessors, (312), 46 states have call successors, (46), 39 states have call predecessors, (46), 47 states have return successors, (70), 49 states have call predecessors, (70), 46 states have call successors, (70) [2024-11-23 23:54:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 428 transitions. [2024-11-23 23:54:52,796 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 428 transitions. Word has length 60 [2024-11-23 23:54:52,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:52,797 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 428 transitions. [2024-11-23 23:54:52,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-23 23:54:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 428 transitions. [2024-11-23 23:54:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-23 23:54:52,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:52,803 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:52,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:54:52,804 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:52,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2019997139, now seen corresponding path program 1 times [2024-11-23 23:54:52,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:52,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854258473] [2024-11-23 23:54:52,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:52,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:54:52,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:52,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854258473] [2024-11-23 23:54:52,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854258473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:52,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:54:52,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:54:52,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309787803] [2024-11-23 23:54:52,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:52,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:52,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:52,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:52,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:54:52,952 INFO L87 Difference]: Start difference. First operand 351 states and 428 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 23:54:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:53,039 INFO L93 Difference]: Finished difference Result 598 states and 747 transitions. [2024-11-23 23:54:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:53,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-11-23 23:54:53,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:53,050 INFO L225 Difference]: With dead ends: 598 [2024-11-23 23:54:53,050 INFO L226 Difference]: Without dead ends: 596 [2024-11-23 23:54:53,050 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 23:54:53,051 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 90 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:53,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 221 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-23 23:54:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 571. [2024-11-23 23:54:53,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 413 states have (on average 1.208232445520581) internal successors, (499), 441 states have internal predecessors, (499), 78 states have call successors, (78), 65 states have call predecessors, (78), 79 states have return successors, (136), 80 states have call predecessors, (136), 78 states have call successors, (136) [2024-11-23 23:54:53,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 713 transitions. [2024-11-23 23:54:53,169 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 713 transitions. Word has length 64 [2024-11-23 23:54:53,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:53,170 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 713 transitions. [2024-11-23 23:54:53,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 23:54:53,170 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 713 transitions. [2024-11-23 23:54:53,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:54:53,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:53,179 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-23 23:54:53,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:54:53,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:53,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:53,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1015776456, now seen corresponding path program 1 times [2024-11-23 23:54:53,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:53,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235483455] [2024-11-23 23:54:53,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:53,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 18 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 23:54:53,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235483455] [2024-11-23 23:54:53,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235483455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661237201] [2024-11-23 23:54:53,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:53,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:53,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:53,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:53,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:54:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:53,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:54:53,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 23:54:53,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:53,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661237201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:53,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:53,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-11-23 23:54:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114214325] [2024-11-23 23:54:53,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:53,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:54:53,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:53,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:54:53,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:54:53,993 INFO L87 Difference]: Start difference. First operand 571 states and 713 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 23:54:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:54,526 INFO L93 Difference]: Finished difference Result 1197 states and 1540 transitions. [2024-11-23 23:54:54,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:54:54,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 122 [2024-11-23 23:54:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:54,532 INFO L225 Difference]: With dead ends: 1197 [2024-11-23 23:54:54,532 INFO L226 Difference]: Without dead ends: 684 [2024-11-23 23:54:54,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:54:54,535 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 160 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:54,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 276 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:54:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-23 23:54:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 671. [2024-11-23 23:54:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 486 states have (on average 1.213991769547325) internal successors, (590), 517 states have internal predecessors, (590), 93 states have call successors, (93), 81 states have call predecessors, (93), 91 states have return successors, (174), 92 states have call predecessors, (174), 93 states have call successors, (174) [2024-11-23 23:54:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 857 transitions. [2024-11-23 23:54:54,684 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 857 transitions. Word has length 122 [2024-11-23 23:54:54,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:54,686 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 857 transitions. [2024-11-23 23:54:54,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 23:54:54,686 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 857 transitions. [2024-11-23 23:54:54,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 23:54:54,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:54,693 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-23 23:54:54,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:54:54,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:54,898 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:54,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:54,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1197758254, now seen corresponding path program 1 times [2024-11-23 23:54:54,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:54,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620672123] [2024-11-23 23:54:54,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:54,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 17 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 23:54:55,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:55,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620672123] [2024-11-23 23:54:55,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620672123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:55,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182020962] [2024-11-23 23:54:55,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:55,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:55,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:55,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:55,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:54:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:55,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:54:55,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:54:55,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:55,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182020962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:55,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:55,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-23 23:54:55,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384106597] [2024-11-23 23:54:55,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:55,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:54:55,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:55,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:54:55,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:54:55,517 INFO L87 Difference]: Start difference. First operand 671 states and 857 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:54:55,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:55,629 INFO L93 Difference]: Finished difference Result 1184 states and 1533 transitions. [2024-11-23 23:54:55,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:54:55,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 118 [2024-11-23 23:54:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:55,640 INFO L225 Difference]: With dead ends: 1184 [2024-11-23 23:54:55,640 INFO L226 Difference]: Without dead ends: 573 [2024-11-23 23:54:55,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:54:55,644 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 55 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:55,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 244 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:54:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-23 23:54:55,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 545. [2024-11-23 23:54:55,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 393 states have (on average 1.2035623409669212) internal successors, (473), 420 states have internal predecessors, (473), 76 states have call successors, (76), 65 states have call predecessors, (76), 75 states have return successors, (115), 76 states have call predecessors, (115), 76 states have call successors, (115) [2024-11-23 23:54:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 664 transitions. [2024-11-23 23:54:55,753 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 664 transitions. Word has length 118 [2024-11-23 23:54:55,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:55,754 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 664 transitions. [2024-11-23 23:54:55,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-23 23:54:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 664 transitions. [2024-11-23 23:54:55,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 23:54:55,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:55,758 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:55,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:54:55,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 23:54:55,962 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:55,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1564662539, now seen corresponding path program 1 times [2024-11-23 23:54:55,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:55,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705026042] [2024-11-23 23:54:55,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:55,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:54:56,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:56,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705026042] [2024-11-23 23:54:56,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705026042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:56,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494932482] [2024-11-23 23:54:56,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:56,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:56,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:56,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:56,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:54:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:56,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 23:54:56,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-23 23:54:56,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:54:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-23 23:54:56,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494932482] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:56,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:54:56,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 12 [2024-11-23 23:54:56,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661374523] [2024-11-23 23:54:56,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:56,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:54:56,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:56,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:54:56,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:54:56,870 INFO L87 Difference]: Start difference. First operand 545 states and 664 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:54:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:57,110 INFO L93 Difference]: Finished difference Result 1559 states and 1938 transitions. [2024-11-23 23:54:57,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:54:57,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-23 23:54:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:57,118 INFO L225 Difference]: With dead ends: 1559 [2024-11-23 23:54:57,119 INFO L226 Difference]: Without dead ends: 1022 [2024-11-23 23:54:57,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:54:57,122 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 77 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:57,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 522 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:54:57,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-23 23:54:57,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 922. [2024-11-23 23:54:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 660 states have (on average 1.1787878787878787) internal successors, (778), 706 states have internal predecessors, (778), 130 states have call successors, (130), 112 states have call predecessors, (130), 131 states have return successors, (200), 132 states have call predecessors, (200), 130 states have call successors, (200) [2024-11-23 23:54:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1108 transitions. [2024-11-23 23:54:57,335 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1108 transitions. Word has length 120 [2024-11-23 23:54:57,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:57,336 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1108 transitions. [2024-11-23 23:54:57,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-23 23:54:57,336 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1108 transitions. [2024-11-23 23:54:57,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:54:57,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:57,342 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:57,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:54:57,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-23 23:54:57,543 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:57,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:57,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1650231495, now seen corresponding path program 1 times [2024-11-23 23:54:57,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:57,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971924769] [2024-11-23 23:54:57,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:57,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:54:57,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:57,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971924769] [2024-11-23 23:54:57,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971924769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:57,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18084289] [2024-11-23 23:54:57,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:57,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:57,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:57,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:57,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:54:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:58,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:54:58,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 23:54:58,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:58,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18084289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:58,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:58,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-11-23 23:54:58,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244853797] [2024-11-23 23:54:58,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:58,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:54:58,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:58,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:54:58,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:54:58,322 INFO L87 Difference]: Start difference. First operand 922 states and 1108 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 23:54:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:58,632 INFO L93 Difference]: Finished difference Result 1799 states and 2171 transitions. [2024-11-23 23:54:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:54:58,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 124 [2024-11-23 23:54:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:58,639 INFO L225 Difference]: With dead ends: 1799 [2024-11-23 23:54:58,639 INFO L226 Difference]: Without dead ends: 885 [2024-11-23 23:54:58,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:54:58,643 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 73 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:58,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 664 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:54:58,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-11-23 23:54:58,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 877. [2024-11-23 23:54:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 629 states have (on average 1.1669316375198728) internal successors, (734), 669 states have internal predecessors, (734), 125 states have call successors, (125), 107 states have call predecessors, (125), 122 states have return successors, (175), 125 states have call predecessors, (175), 125 states have call successors, (175) [2024-11-23 23:54:58,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1034 transitions. [2024-11-23 23:54:58,755 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1034 transitions. Word has length 124 [2024-11-23 23:54:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:58,756 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1034 transitions. [2024-11-23 23:54:58,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-23 23:54:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1034 transitions. [2024-11-23 23:54:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-23 23:54:58,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:54:58,762 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:54:58,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:54:58,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 23:54:58,962 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:54:58,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:54:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1581557128, now seen corresponding path program 1 times [2024-11-23 23:54:58,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:54:58,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899915783] [2024-11-23 23:54:58,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:54:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 48 proven. 26 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-23 23:54:59,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:54:59,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899915783] [2024-11-23 23:54:59,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899915783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:54:59,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113190546] [2024-11-23 23:54:59,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:54:59,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:54:59,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:54:59,297 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:54:59,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:54:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:54:59,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:54:59,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:54:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-23 23:54:59,662 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:54:59,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113190546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:54:59,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:54:59,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2024-11-23 23:54:59,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388829884] [2024-11-23 23:54:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:54:59,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:54:59,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:54:59,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:54:59,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:54:59,665 INFO L87 Difference]: Start difference. First operand 877 states and 1034 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-23 23:54:59,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:54:59,913 INFO L93 Difference]: Finished difference Result 1432 states and 1695 transitions. [2024-11-23 23:54:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:54:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 177 [2024-11-23 23:54:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:54:59,915 INFO L225 Difference]: With dead ends: 1432 [2024-11-23 23:54:59,916 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:54:59,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:54:59,920 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 61 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:54:59,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 883 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:54:59,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:54:59,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:54:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:54:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:54:59,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2024-11-23 23:54:59,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:54:59,923 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:54:59,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-23 23:54:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:54:59,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:54:59,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:54:59,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:55:00,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 23:55:00,134 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:55:00,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:55:07,285 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:55:07,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:55:07 BoogieIcfgContainer [2024-11-23 23:55:07,298 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:55:07,299 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:55:07,299 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:55:07,299 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:55:07,300 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:54:49" (3/4) ... [2024-11-23 23:55:07,302 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:55:07,305 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-23 23:55:07,305 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:55:07,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-23 23:55:07,313 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-23 23:55:07,313 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-23 23:55:07,314 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 23:55:07,314 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:55:07,315 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:55:07,433 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:55:07,434 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:55:07,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:55:07,438 INFO L158 Benchmark]: Toolchain (without parser) took 19371.63ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 93.2MB in the beginning and 89.0MB in the end (delta: 4.2MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. [2024-11-23 23:55:07,438 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:55:07,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 648.40ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 73.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:55:07,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.81ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:55:07,439 INFO L158 Benchmark]: Boogie Preprocessor took 46.95ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:55:07,440 INFO L158 Benchmark]: RCFGBuilder took 551.43ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 52.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:55:07,440 INFO L158 Benchmark]: TraceAbstraction took 17922.56ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 51.5MB in the beginning and 95.1MB in the end (delta: -43.6MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2024-11-23 23:55:07,440 INFO L158 Benchmark]: Witness Printer took 137.01ms. Allocated memory is still 218.1MB. Free memory was 95.1MB in the beginning and 89.0MB in the end (delta: 6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:55:07,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 648.40ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 73.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.81ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.95ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 70.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 551.43ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 52.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17922.56ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 51.5MB in the beginning and 95.1MB in the end (delta: -43.6MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. * Witness Printer took 137.01ms. Allocated memory is still 218.1MB. Free memory was 95.1MB in the beginning and 89.0MB in the end (delta: 6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [91] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [562] - GenericResultAtLocation [Line: 571]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [571] - GenericResultAtLocation [Line: 606]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [606] - GenericResultAtLocation [Line: 671]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [671] - GenericResultAtLocation [Line: 779]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [779] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 567]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1156 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1130 mSDsluCounter, 5023 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3243 mSDsCounter, 170 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1099 IncrementalHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 170 mSolverCounterUnsat, 1780 mSDtfsCounter, 1099 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 892 GetRequests, 799 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=922occurred in iteration=11, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 189 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1714 NumberOfCodeBlocks, 1714 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1815 ConstructedInterpolants, 0 QuantifiedInterpolants, 3036 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2057 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 734/828 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: (((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 616]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-23 23:55:07,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a45feff-bb18-4434-a54f-89802ba27eae/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 Result: TRUE