./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product58.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_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/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_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/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_15958962-af07-46fa-ad55-578b9e3ad261/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 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:13:43,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:13:43,236 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:13:43,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:13:43,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:13:43,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:13:43,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:13:43,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:13:43,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:13:43,281 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:13:43,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:13:43,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:13:43,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:13:43,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:13:43,282 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:13:43,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:13:43,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:13:43,283 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:13:43,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:13:43,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:13:43,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:13:43,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:13:43,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:13:43,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:13:43,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:13:43,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:13:43,285 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:13:43,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:13:43,285 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:13:43,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:43,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:43,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:13:43,286 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:13:43,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:13:43,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:13:43,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:13:43,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:13:43,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:13:43,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:13:43,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:13:43,287 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_15958962-af07-46fa-ad55-578b9e3ad261/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 -> 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c [2024-11-24 01:13:43,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:13:43,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:13:43,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:13:43,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:13:43,636 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:13:43,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2024-11-24 01:13:46,684 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/data/29697405f/b578b086e9af49f4b383c500b8ebb028/FLAG4922e2040 [2024-11-24 01:13:47,006 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:13:47,007 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2024-11-24 01:13:47,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/data/29697405f/b578b086e9af49f4b383c500b8ebb028/FLAG4922e2040 [2024-11-24 01:13:47,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/data/29697405f/b578b086e9af49f4b383c500b8ebb028 [2024-11-24 01:13:47,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:13:47,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:13:47,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:13:47,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:13:47,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:13:47,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59399fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47, skipping insertion in model container [2024-11-24 01:13:47,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:13:47,270 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_15958962-af07-46fa-ad55-578b9e3ad261/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2024-11-24 01:13:47,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:13:47,439 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:13:47,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-24 01:13:47,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] [2024-11-24 01:13:47,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2024-11-24 01:13:47,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] [2024-11-24 01:13:47,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [499] [2024-11-24 01:13:47,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] [2024-11-24 01:13:47,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [592] [2024-11-24 01:13:47,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [627] [2024-11-24 01:13:47,458 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_15958962-af07-46fa-ad55-578b9e3ad261/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2024-11-24 01:13:47,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:13:47,567 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:13:47,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47 WrapperNode [2024-11-24 01:13:47,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:13:47,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:13:47,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:13:47,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:13:47,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,618 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 217 [2024-11-24 01:13:47,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:13:47,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:13:47,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:13:47,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:13:47,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,652 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]. [2024-11-24 01:13:47,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,664 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:13:47,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:13:47,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:13:47,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:13:47,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (1/1) ... [2024-11-24 01:13:47,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:47,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:47,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:13:47,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:13:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:13:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-24 01:13:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-24 01:13:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-24 01:13:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-24 01:13:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-24 01:13:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-24 01:13:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-24 01:13:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-24 01:13:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:13:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:13:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-24 01:13:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-24 01:13:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:13:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-24 01:13:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-24 01:13:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:13:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:13:47,874 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:13:47,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:13:48,187 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-24 01:13:48,188 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:13:48,199 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:13:48,199 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:13:48,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:48 BoogieIcfgContainer [2024-11-24 01:13:48,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:13:48,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:13:48,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:13:48,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:13:48,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:13:47" (1/3) ... [2024-11-24 01:13:48,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de4b9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:13:48, skipping insertion in model container [2024-11-24 01:13:48,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:47" (2/3) ... [2024-11-24 01:13:48,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de4b9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:13:48, skipping insertion in model container [2024-11-24 01:13:48,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:48" (3/3) ... [2024-11-24 01:13:48,211 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2024-11-24 01:13:48,226 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:13:48,228 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec1_product58.cil.c that has 8 procedures, 90 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-24 01:13:48,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:13:48,295 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;@37a5103b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:13:48,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:13:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 01:13:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-24 01:13:48,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:48,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:48,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:48,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1505989108, now seen corresponding path program 1 times [2024-11-24 01:13:48,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:48,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801313069] [2024-11-24 01:13:48,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:48,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:13:48,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:48,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801313069] [2024-11-24 01:13:48,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801313069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:48,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:13:48,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195109121] [2024-11-24 01:13:48,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:48,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:13:48,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:48,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:13:48,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:13:48,580 INFO L87 Difference]: Start difference. First operand has 90 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-11-24 01:13:48,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:48,617 INFO L93 Difference]: Finished difference Result 172 states and 235 transitions. [2024-11-24 01:13:48,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:13:48,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2024-11-24 01:13:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:48,628 INFO L225 Difference]: With dead ends: 172 [2024-11-24 01:13:48,628 INFO L226 Difference]: Without dead ends: 81 [2024-11-24 01:13:48,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:13:48,634 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:48,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:13:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-24 01:13:48,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-24 01:13:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 69 states have internal predecessors, (82), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 01:13:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 105 transitions. [2024-11-24 01:13:48,678 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 105 transitions. Word has length 23 [2024-11-24 01:13:48,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:48,678 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 105 transitions. [2024-11-24 01:13:48,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-11-24 01:13:48,679 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 105 transitions. [2024-11-24 01:13:48,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-24 01:13:48,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:48,681 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:48,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:13:48,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:48,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:48,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1557215954, now seen corresponding path program 1 times [2024-11-24 01:13:48,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:48,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32698824] [2024-11-24 01:13:48,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:48,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:13:48,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:48,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32698824] [2024-11-24 01:13:48,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32698824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:48,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:48,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:13:48,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85488030] [2024-11-24 01:13:48,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:48,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:13:48,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:48,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:13:48,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:13:48,862 INFO L87 Difference]: Start difference. First operand 81 states and 105 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-24 01:13:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:48,879 INFO L93 Difference]: Finished difference Result 129 states and 167 transitions. [2024-11-24 01:13:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:13:48,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 23 [2024-11-24 01:13:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:48,880 INFO L225 Difference]: With dead ends: 129 [2024-11-24 01:13:48,880 INFO L226 Difference]: Without dead ends: 73 [2024-11-24 01:13:48,881 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 [2024-11-24 01:13:48,882 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 13 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 170 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 [2024-11-24 01:13:48,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 170 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:13:48,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-24 01:13:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-24 01:13:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:13:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2024-11-24 01:13:48,892 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 23 [2024-11-24 01:13:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2024-11-24 01:13:48,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-24 01:13:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2024-11-24 01:13:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-24 01:13:48,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:48,894 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:48,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:13:48,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:48,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash -983551129, now seen corresponding path program 1 times [2024-11-24 01:13:48,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:48,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225197674] [2024-11-24 01:13:48,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:48,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:13:49,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:49,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225197674] [2024-11-24 01:13:49,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225197674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:49,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:49,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:13:49,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319511095] [2024-11-24 01:13:49,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:49,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:13:49,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:49,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:13:49,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:13:49,053 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 01:13:49,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:49,080 INFO L93 Difference]: Finished difference Result 139 states and 182 transitions. [2024-11-24 01:13:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:13:49,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 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 28 [2024-11-24 01:13:49,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:49,082 INFO L225 Difference]: With dead ends: 139 [2024-11-24 01:13:49,082 INFO L226 Difference]: Without dead ends: 73 [2024-11-24 01:13:49,083 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 [2024-11-24 01:13:49,083 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 88 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:49,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 92 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:13:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-24 01:13:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-24 01:13:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:13:49,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2024-11-24 01:13:49,094 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 28 [2024-11-24 01:13:49,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:49,094 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-24 01:13:49,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 01:13:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2024-11-24 01:13:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-24 01:13:49,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:49,096 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:49,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:13:49,096 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:49,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1365090837, now seen corresponding path program 1 times [2024-11-24 01:13:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:49,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504170148] [2024-11-24 01:13:49,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:49,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:13:49,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:49,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504170148] [2024-11-24 01:13:49,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504170148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:49,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:49,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:49,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978678174] [2024-11-24 01:13:49,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:49,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:49,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:49,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:49,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:49,208 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 01:13:49,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:49,539 INFO L93 Difference]: Finished difference Result 211 states and 268 transitions. [2024-11-24 01:13:49,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:13:49,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-11-24 01:13:49,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:49,541 INFO L225 Difference]: With dead ends: 211 [2024-11-24 01:13:49,541 INFO L226 Difference]: Without dead ends: 145 [2024-11-24 01:13:49,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:13:49,547 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 182 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:49,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 264 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:13:49,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-24 01:13:49,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 139. [2024-11-24 01:13:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 107 states have (on average 1.2616822429906542) internal successors, (135), 115 states have internal predecessors, (135), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-24 01:13:49,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 170 transitions. [2024-11-24 01:13:49,585 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 170 transitions. Word has length 38 [2024-11-24 01:13:49,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:49,585 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 170 transitions. [2024-11-24 01:13:49,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 01:13:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 170 transitions. [2024-11-24 01:13:49,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 01:13:49,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:49,587 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] [2024-11-24 01:13:49,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:13:49,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:49,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:49,588 INFO L85 PathProgramCache]: Analyzing trace with hash -994755507, now seen corresponding path program 1 times [2024-11-24 01:13:49,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:49,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104521128] [2024-11-24 01:13:49,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:49,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:13:49,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:49,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104521128] [2024-11-24 01:13:49,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104521128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:49,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:49,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:13:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991200560] [2024-11-24 01:13:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:49,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:13:49,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:49,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:13:49,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:13:49,803 INFO L87 Difference]: Start difference. First operand 139 states and 170 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:13:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:50,088 INFO L93 Difference]: Finished difference Result 143 states and 172 transitions. [2024-11-24 01:13:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:13:50,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-11-24 01:13:50,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:50,090 INFO L225 Difference]: With dead ends: 143 [2024-11-24 01:13:50,090 INFO L226 Difference]: Without dead ends: 141 [2024-11-24 01:13:50,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:13:50,092 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 111 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:50,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 345 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:13:50,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-24 01:13:50,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2024-11-24 01:13:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 107 states have (on average 1.2429906542056075) internal successors, (133), 115 states have internal predecessors, (133), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-24 01:13:50,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2024-11-24 01:13:50,129 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 44 [2024-11-24 01:13:50,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:50,129 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2024-11-24 01:13:50,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:13:50,129 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2024-11-24 01:13:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 01:13:50,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:50,133 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:50,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:13:50,134 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:50,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash 762074918, now seen corresponding path program 1 times [2024-11-24 01:13:50,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:50,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390908184] [2024-11-24 01:13:50,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:50,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:13:50,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:50,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390908184] [2024-11-24 01:13:50,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390908184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:50,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:50,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:50,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550445583] [2024-11-24 01:13:50,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:50,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:50,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:50,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:50,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:50,284 INFO L87 Difference]: Start difference. First operand 139 states and 168 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:13:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:50,324 INFO L93 Difference]: Finished difference Result 274 states and 339 transitions. [2024-11-24 01:13:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:50,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-11-24 01:13:50,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:50,331 INFO L225 Difference]: With dead ends: 274 [2024-11-24 01:13:50,331 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 01:13:50,332 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 [2024-11-24 01:13:50,333 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 354 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 [2024-11-24 01:13:50,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 354 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:13:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 01:13:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-24 01:13:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 118 states have internal predecessors, (136), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-24 01:13:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 171 transitions. [2024-11-24 01:13:50,368 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 171 transitions. Word has length 50 [2024-11-24 01:13:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:50,368 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 171 transitions. [2024-11-24 01:13:50,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:13:50,369 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 171 transitions. [2024-11-24 01:13:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 01:13:50,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:50,374 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:50,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:13:50,374 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:50,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash 824114532, now seen corresponding path program 1 times [2024-11-24 01:13:50,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:50,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710944632] [2024-11-24 01:13:50,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:50,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:13:50,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:50,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710944632] [2024-11-24 01:13:50,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710944632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:50,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:50,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:50,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782889396] [2024-11-24 01:13:50,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:50,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:50,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:50,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:50,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:50,520 INFO L87 Difference]: Start difference. First operand 142 states and 171 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:13:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:50,574 INFO L93 Difference]: Finished difference Result 279 states and 344 transitions. [2024-11-24 01:13:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:50,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-11-24 01:13:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:50,576 INFO L225 Difference]: With dead ends: 279 [2024-11-24 01:13:50,578 INFO L226 Difference]: Without dead ends: 144 [2024-11-24 01:13:50,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:13:50,580 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 90 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:50,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 264 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:13:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-24 01:13:50,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-24 01:13:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 120 states have internal predecessors, (138), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2024-11-24 01:13:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 173 transitions. [2024-11-24 01:13:50,610 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 173 transitions. Word has length 50 [2024-11-24 01:13:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:50,611 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 173 transitions. [2024-11-24 01:13:50,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 01:13:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2024-11-24 01:13:50,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 01:13:50,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:50,615 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:50,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:13:50,615 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:50,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:50,616 INFO L85 PathProgramCache]: Analyzing trace with hash 314641442, now seen corresponding path program 1 times [2024-11-24 01:13:50,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:50,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099591938] [2024-11-24 01:13:50,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:50,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:50,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:13:50,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:50,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099591938] [2024-11-24 01:13:50,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099591938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:50,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:50,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:13:50,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575187580] [2024-11-24 01:13:50,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:50,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:13:50,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:50,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:13:50,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:13:50,757 INFO L87 Difference]: Start difference. First operand 144 states and 173 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 01:13:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:50,902 INFO L93 Difference]: Finished difference Result 437 states and 545 transitions. [2024-11-24 01:13:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:13:50,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2024-11-24 01:13:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:50,905 INFO L225 Difference]: With dead ends: 437 [2024-11-24 01:13:50,907 INFO L226 Difference]: Without dead ends: 300 [2024-11-24 01:13:50,908 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 [2024-11-24 01:13:50,909 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 114 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:50,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 294 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:13:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-24 01:13:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 293. [2024-11-24 01:13:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 226 states have (on average 1.2212389380530972) internal successors, (276), 240 states have internal predecessors, (276), 32 states have call successors, (32), 29 states have call predecessors, (32), 34 states have return successors, (51), 34 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-24 01:13:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 359 transitions. [2024-11-24 01:13:50,957 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 359 transitions. Word has length 50 [2024-11-24 01:13:50,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:50,957 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 359 transitions. [2024-11-24 01:13:50,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 01:13:50,958 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 359 transitions. [2024-11-24 01:13:50,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:13:50,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:50,959 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] [2024-11-24 01:13:50,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:13:50,959 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:50,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:50,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1462909628, now seen corresponding path program 1 times [2024-11-24 01:13:50,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:50,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082397261] [2024-11-24 01:13:50,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:50,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:13:51,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:51,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082397261] [2024-11-24 01:13:51,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082397261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:51,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:51,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:13:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766617379] [2024-11-24 01:13:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:51,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:13:51,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:51,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:13:51,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:13:51,144 INFO L87 Difference]: Start difference. First operand 293 states and 359 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:13:51,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:51,328 INFO L93 Difference]: Finished difference Result 847 states and 1072 transitions. [2024-11-24 01:13:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:13:51,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2024-11-24 01:13:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:51,332 INFO L225 Difference]: With dead ends: 847 [2024-11-24 01:13:51,334 INFO L226 Difference]: Without dead ends: 561 [2024-11-24 01:13:51,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:13:51,336 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 62 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:51,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 415 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:13:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-24 01:13:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-11-24 01:13:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 428 states have (on average 1.1962616822429906) internal successors, (512), 455 states have internal predecessors, (512), 64 states have call successors, (64), 58 states have call predecessors, (64), 68 states have return successors, (107), 68 states have call predecessors, (107), 64 states have call successors, (107) [2024-11-24 01:13:51,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 683 transitions. [2024-11-24 01:13:51,409 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 683 transitions. Word has length 54 [2024-11-24 01:13:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:51,410 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 683 transitions. [2024-11-24 01:13:51,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:13:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 683 transitions. [2024-11-24 01:13:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 01:13:51,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:51,412 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:51,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:13:51,412 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:51,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:51,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1894797048, now seen corresponding path program 1 times [2024-11-24 01:13:51,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:51,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802772309] [2024-11-24 01:13:51,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:51,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:13:51,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:51,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802772309] [2024-11-24 01:13:51,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802772309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:51,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321489907] [2024-11-24 01:13:51,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:51,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:13:51,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:51,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:13:51,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:13:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:51,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:13:51,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:13:52,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:52,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321489907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:52,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:52,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-24 01:13:52,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730132651] [2024-11-24 01:13:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:52,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:13:52,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:52,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:13:52,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:13:52,008 INFO L87 Difference]: Start difference. First operand 561 states and 683 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 01:13:52,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:52,220 INFO L93 Difference]: Finished difference Result 1098 states and 1342 transitions. [2024-11-24 01:13:52,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:13:52,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-11-24 01:13:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:52,224 INFO L225 Difference]: With dead ends: 1098 [2024-11-24 01:13:52,224 INFO L226 Difference]: Without dead ends: 544 [2024-11-24 01:13:52,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:13:52,226 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 57 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:52,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 644 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:13:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-24 01:13:52,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2024-11-24 01:13:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 415 states have (on average 1.183132530120482) internal successors, (491), 441 states have internal predecessors, (491), 63 states have call successors, (63), 57 states have call predecessors, (63), 65 states have return successors, (95), 66 states have call predecessors, (95), 63 states have call successors, (95) [2024-11-24 01:13:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 649 transitions. [2024-11-24 01:13:52,286 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 649 transitions. Word has length 58 [2024-11-24 01:13:52,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:52,286 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 649 transitions. [2024-11-24 01:13:52,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 01:13:52,286 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 649 transitions. [2024-11-24 01:13:52,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 01:13:52,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:52,291 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-24 01:13:52,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:13:52,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:13:52,491 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:52,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:52,492 INFO L85 PathProgramCache]: Analyzing trace with hash -525420665, now seen corresponding path program 1 times [2024-11-24 01:13:52,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:52,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124867700] [2024-11-24 01:13:52,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:52,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 01:13:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124867700] [2024-11-24 01:13:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124867700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252532133] [2024-11-24 01:13:52,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:52,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:13:52,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:52,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:13:52,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:13:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:52,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:13:52,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 01:13:53,079 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:53,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252532133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:53,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:53,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2024-11-24 01:13:53,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501791825] [2024-11-24 01:13:53,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:53,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:13:53,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:53,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:13:53,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:13:53,086 INFO L87 Difference]: Start difference. First operand 544 states and 649 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 01:13:53,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:53,322 INFO L93 Difference]: Finished difference Result 1380 states and 1736 transitions. [2024-11-24 01:13:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:13:53,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 96 [2024-11-24 01:13:53,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:53,330 INFO L225 Difference]: With dead ends: 1380 [2024-11-24 01:13:53,330 INFO L226 Difference]: Without dead ends: 933 [2024-11-24 01:13:53,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:13:53,333 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 102 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:53,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 524 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:13:53,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-24 01:13:53,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 871. [2024-11-24 01:13:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 661 states have (on average 1.1875945537065054) internal successors, (785), 699 states have internal predecessors, (785), 106 states have call successors, (106), 98 states have call predecessors, (106), 103 states have return successors, (168), 101 states have call predecessors, (168), 106 states have call successors, (168) [2024-11-24 01:13:53,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1059 transitions. [2024-11-24 01:13:53,478 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1059 transitions. Word has length 96 [2024-11-24 01:13:53,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:53,479 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1059 transitions. [2024-11-24 01:13:53,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 01:13:53,479 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1059 transitions. [2024-11-24 01:13:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 01:13:53,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:53,483 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-24 01:13:53,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:13:53,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:13:53,687 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:53,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:53,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1964108297, now seen corresponding path program 1 times [2024-11-24 01:13:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:53,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184873431] [2024-11-24 01:13:53,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:53,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 01:13:53,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:53,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184873431] [2024-11-24 01:13:53,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184873431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:53,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395354594] [2024-11-24 01:13:53,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:53,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:13:53,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:53,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:13:53,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:13:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:53,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:13:53,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:13:54,035 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:54,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395354594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:54,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:54,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-24 01:13:54,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177955597] [2024-11-24 01:13:54,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:54,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:54,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:54,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:54,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:13:54,038 INFO L87 Difference]: Start difference. First operand 871 states and 1059 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:13:54,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:54,095 INFO L93 Difference]: Finished difference Result 1153 states and 1396 transitions. [2024-11-24 01:13:54,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:54,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2024-11-24 01:13:54,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:54,098 INFO L225 Difference]: With dead ends: 1153 [2024-11-24 01:13:54,098 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:13:54,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:13:54,102 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:54,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:13:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:13:54,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:13:54,103 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) [2024-11-24 01:13:54,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:13:54,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2024-11-24 01:13:54,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:54,104 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:13:54,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:13:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:13:54,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:13:54,107 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:13:54,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:13:54,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:13:54,315 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:54,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:13:58,147 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:13:58,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:13:58 BoogieIcfgContainer [2024-11-24 01:13:58,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:13:58,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:13:58,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:13:58,170 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:13:58,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:48" (3/4) ... [2024-11-24 01:13:58,173 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:13:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-24 01:13:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-24 01:13:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-24 01:13:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-24 01:13:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-24 01:13:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-24 01:13:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-24 01:13:58,191 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-24 01:13:58,192 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-24 01:13:58,192 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 01:13:58,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:13:58,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:13:58,304 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:13:58,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:13:58,305 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:13:58,306 INFO L158 Benchmark]: Toolchain (without parser) took 11268.96ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 116.1MB in the beginning and 69.1MB in the end (delta: 47.0MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2024-11-24 01:13:58,306 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:13:58,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.77ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 97.2MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:13:58,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.25ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:13:58,307 INFO L158 Benchmark]: Boogie Preprocessor took 63.41ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 93.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:13:58,307 INFO L158 Benchmark]: RCFGBuilder took 516.91ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 76.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:13:58,308 INFO L158 Benchmark]: TraceAbstraction took 9967.08ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 91.0kB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-11-24 01:13:58,308 INFO L158 Benchmark]: Witness Printer took 134.77ms. Allocated memory is still 176.2MB. Free memory was 75.5MB in the beginning and 69.1MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:13:58,310 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.77ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 97.2MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.25ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.41ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 93.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 516.91ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 76.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9967.08ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 91.0kB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Witness Printer took 134.77ms. Allocated memory is still 176.2MB. Free memory was 75.5MB in the beginning and 69.1MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] - GenericResultAtLocation [Line: 169]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [499] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [592] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [627] * 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: 54]: 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 8 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 831 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 819 mSDsluCounter, 3795 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2499 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 562 IncrementalHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 1296 mSDtfsCounter, 562 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=11, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 77 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 860 NumberOfCodeBlocks, 860 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 845 ConstructedInterpolants, 0 QuantifiedInterpolants, 1404 SizeOfPredicates, 2 NumberOfNonLiveVariables, 862 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 131/138 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: 535]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) || (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) || ((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-24 01:13:58,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15958962-af07-46fa-ad55-578b9e3ad261/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