./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme --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 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:44:26,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:44:26,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:44:26,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:44:26,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:44:26,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:44:26,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:44:26,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:44:26,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:44:26,204 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:44:26,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:44:26,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:44:26,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:44:26,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:44:26,208 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:44:26,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:44:26,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:44:26,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:44:26,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:44:26,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:44:26,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:44:26,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:44:26,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:44:26,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:44:26,214 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:44:26,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:44:26,215 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:44:26,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:44:26,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:44:26,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:44:26,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:44:26,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:26,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:44:26,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:44:26,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:44:26,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:44:26,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:44:26,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:44:26,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:44:26,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:44:26,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:44:26,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:44:26,221 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 [2023-11-26 10:44:26,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:44:26,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:44:26,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:44:26,529 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:44:26,530 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:44:26,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2023-11-26 10:44:29,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:44:29,828 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:44:29,829 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2023-11-26 10:44:29,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/data/b070f8d29/81250f7a740a419688ef32fdec6376bd/FLAG81a1adb05 [2023-11-26 10:44:29,860 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/data/b070f8d29/81250f7a740a419688ef32fdec6376bd [2023-11-26 10:44:29,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:44:29,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:44:29,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:29,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:44:29,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:44:29,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:29" (1/1) ... [2023-11-26 10:44:29,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c87e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:29, skipping insertion in model container [2023-11-26 10:44:29,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:29" (1/1) ... [2023-11-26 10:44:29,929 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:44:30,199 WARN L240 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_95b0c1c5-bd18-44d1-950f-b946734fee3a/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2023-11-26 10:44:30,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:30,255 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:44:30,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-26 10:44:30,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-11-26 10:44:30,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] [2023-11-26 10:44:30,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] [2023-11-26 10:44:30,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] [2023-11-26 10:44:30,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] [2023-11-26 10:44:30,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] [2023-11-26 10:44:30,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] [2023-11-26 10:44:30,365 WARN L240 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_95b0c1c5-bd18-44d1-950f-b946734fee3a/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2023-11-26 10:44:30,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:30,412 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:44:30,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30 WrapperNode [2023-11-26 10:44:30,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:30,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:30,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:44:30,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:44:30,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,472 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 227 [2023-11-26 10:44:30,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:30,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:44:30,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:44:30,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:44:30,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,490 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,507 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]. [2023-11-26 10:44:30,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:44:30,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:44:30,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:44:30,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:44:30,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (1/1) ... [2023-11-26 10:44:30,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:30,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:44:30,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:44:30,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:44:30,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:44:30,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 10:44:30,660 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 10:44:30,660 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 10:44:30,660 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 10:44:30,661 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 10:44:30,661 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 10:44:30,661 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-26 10:44:30,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-26 10:44:30,661 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 10:44:30,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 10:44:30,662 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 10:44:30,662 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 10:44:30,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:44:30,662 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 10:44:30,662 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 10:44:30,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:44:30,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:44:30,784 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:44:30,788 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:44:31,179 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:44:31,279 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:44:31,279 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:44:31,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:31 BoogieIcfgContainer [2023-11-26 10:44:31,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:44:31,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:44:31,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:44:31,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:44:31,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:44:29" (1/3) ... [2023-11-26 10:44:31,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2ee8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:31, skipping insertion in model container [2023-11-26 10:44:31,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:30" (2/3) ... [2023-11-26 10:44:31,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2ee8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:31, skipping insertion in model container [2023-11-26 10:44:31,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:31" (3/3) ... [2023-11-26 10:44:31,293 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product57.cil.c [2023-11-26 10:44:31,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:44:31,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:44:31,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:44:31,397 INFO L357 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, mHoare=true, 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;@7ac52f96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:44:31,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:44:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 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) [2023-11-26 10:44:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 10:44:31,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:31,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:31,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:31,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1520007880, now seen corresponding path program 1 times [2023-11-26 10:44:31,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:31,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667825253] [2023-11-26 10:44:31,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:31,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:31,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:44:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:31,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:31,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667825253] [2023-11-26 10:44:31,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667825253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:31,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:31,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:31,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020888858] [2023-11-26 10:44:31,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:31,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:44:31,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:44:31,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:44:31,703 INFO L87 Difference]: Start difference. First operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-11-26 10:44:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:31,776 INFO L93 Difference]: Finished difference Result 142 states and 207 transitions. [2023-11-26 10:44:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:44:31,782 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17 [2023-11-26 10:44:31,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:31,793 INFO L225 Difference]: With dead ends: 142 [2023-11-26 10:44:31,794 INFO L226 Difference]: Without dead ends: 67 [2023-11-26 10:44:31,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:44:31,808 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:31,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:44:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-26 10:44:31,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-26 10:44:31,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.4375) internal successors, (69), 55 states have internal predecessors, (69), 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) [2023-11-26 10:44:31,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2023-11-26 10:44:31,876 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 17 [2023-11-26 10:44:31,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:31,877 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2023-11-26 10:44:31,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2023-11-26 10:44:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2023-11-26 10:44:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 10:44:31,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:31,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:31,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:44:31,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:31,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:31,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2068637019, now seen corresponding path program 1 times [2023-11-26 10:44:31,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:31,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707949456] [2023-11-26 10:44:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 10:44:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:32,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707949456] [2023-11-26 10:44:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707949456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:32,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:32,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:44:32,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876882340] [2023-11-26 10:44:32,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:32,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:32,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:32,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:32,054 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-26 10:44:32,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:32,125 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2023-11-26 10:44:32,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:32,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2023-11-26 10:44:32,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:32,128 INFO L225 Difference]: With dead ends: 107 [2023-11-26 10:44:32,132 INFO L226 Difference]: Without dead ends: 59 [2023-11-26 10:44:32,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:32,135 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 11 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:32,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 122 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:44:32,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-26 10:44:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-26 10:44:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 50 states have internal predecessors, (63), 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) [2023-11-26 10:44:32,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-11-26 10:44:32,145 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2023-11-26 10:44:32,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:32,146 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-26 10:44:32,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-26 10:44:32,146 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2023-11-26 10:44:32,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 10:44:32,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:32,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:32,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:44:32,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:32,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:32,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1950639704, now seen corresponding path program 1 times [2023-11-26 10:44:32,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:32,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863370540] [2023-11-26 10:44:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:44:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:32,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:32,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863370540] [2023-11-26 10:44:32,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863370540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:32,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:32,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:44:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225877290] [2023-11-26 10:44:32,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:32,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:44:32,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:32,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:44:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:44:32,326 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-26 10:44:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:32,462 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2023-11-26 10:44:32,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:44:32,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2023-11-26 10:44:32,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:32,465 INFO L225 Difference]: With dead ends: 116 [2023-11-26 10:44:32,468 INFO L226 Difference]: Without dead ends: 59 [2023-11-26 10:44:32,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:44:32,472 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 80 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:32,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 100 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:44:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-26 10:44:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-26 10:44:32,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.441860465116279) internal successors, (62), 50 states have internal predecessors, (62), 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) [2023-11-26 10:44:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-11-26 10:44:32,501 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 21 [2023-11-26 10:44:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:32,502 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-11-26 10:44:32,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-26 10:44:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-11-26 10:44:32,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 10:44:32,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:32,510 INFO L195 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] [2023-11-26 10:44:32,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:44:32,510 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:32,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:32,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1311664536, now seen corresponding path program 1 times [2023-11-26 10:44:32,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:32,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98796896] [2023-11-26 10:44:32,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:32,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:44:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:32,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:32,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98796896] [2023-11-26 10:44:32,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98796896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:32,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:32,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:44:32,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222278743] [2023-11-26 10:44:32,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:32,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:32,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:32,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:32,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:32,687 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-26 10:44:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:32,790 INFO L93 Difference]: Finished difference Result 156 states and 214 transitions. [2023-11-26 10:44:32,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:32,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 26 [2023-11-26 10:44:32,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:32,794 INFO L225 Difference]: With dead ends: 156 [2023-11-26 10:44:32,796 INFO L226 Difference]: Without dead ends: 99 [2023-11-26 10:44:32,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:32,803 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 54 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:32,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 123 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:44:32,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-26 10:44:32,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2023-11-26 10:44:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 79 states have internal predecessors, (99), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-26 10:44:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2023-11-26 10:44:32,830 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 26 [2023-11-26 10:44:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:32,831 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2023-11-26 10:44:32,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-26 10:44:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2023-11-26 10:44:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-26 10:44:32,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:32,833 INFO L195 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] [2023-11-26 10:44:32,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:44:32,834 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:32,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:32,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1735456463, now seen corresponding path program 1 times [2023-11-26 10:44:32,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:32,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212012347] [2023-11-26 10:44:32,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:32,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:44:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 10:44:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:32,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:32,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:32,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212012347] [2023-11-26 10:44:32,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212012347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:32,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:32,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:32,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522406763] [2023-11-26 10:44:32,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:32,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:44:32,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:32,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:44:32,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:44:32,968 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:44:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:33,209 INFO L93 Difference]: Finished difference Result 291 states and 401 transitions. [2023-11-26 10:44:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:44:33,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-26 10:44:33,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:33,213 INFO L225 Difference]: With dead ends: 291 [2023-11-26 10:44:33,214 INFO L226 Difference]: Without dead ends: 196 [2023-11-26 10:44:33,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:44:33,216 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:33,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 178 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:44:33,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-26 10:44:33,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 192. [2023-11-26 10:44:33,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 152 states have internal predecessors, (191), 26 states have call successors, (26), 22 states have call predecessors, (26), 24 states have return successors, (40), 26 states have call predecessors, (40), 26 states have call successors, (40) [2023-11-26 10:44:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 257 transitions. [2023-11-26 10:44:33,254 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 257 transitions. Word has length 36 [2023-11-26 10:44:33,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:33,255 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 257 transitions. [2023-11-26 10:44:33,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 10:44:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 257 transitions. [2023-11-26 10:44:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-26 10:44:33,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:33,258 INFO L195 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] [2023-11-26 10:44:33,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:44:33,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:33,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1821783627, now seen corresponding path program 1 times [2023-11-26 10:44:33,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:33,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131533994] [2023-11-26 10:44:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:33,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:33,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:44:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:44:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:44:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:33,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:33,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131533994] [2023-11-26 10:44:33,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131533994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:33,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:33,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:44:33,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026606814] [2023-11-26 10:44:33,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:33,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:33,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:33,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:33,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:33,371 INFO L87 Difference]: Start difference. First operand 192 states and 257 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:33,888 INFO L93 Difference]: Finished difference Result 491 states and 702 transitions. [2023-11-26 10:44:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 10:44:33,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-26 10:44:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:33,900 INFO L225 Difference]: With dead ends: 491 [2023-11-26 10:44:33,900 INFO L226 Difference]: Without dead ends: 376 [2023-11-26 10:44:33,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:44:33,903 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 248 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:33,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 161 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:44:33,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-11-26 10:44:33,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 338. [2023-11-26 10:44:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 248 states have (on average 1.3225806451612903) internal successors, (328), 270 states have internal predecessors, (328), 46 states have call successors, (46), 32 states have call predecessors, (46), 43 states have return successors, (91), 48 states have call predecessors, (91), 46 states have call successors, (91) [2023-11-26 10:44:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 465 transitions. [2023-11-26 10:44:33,975 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 465 transitions. Word has length 40 [2023-11-26 10:44:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:33,976 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 465 transitions. [2023-11-26 10:44:33,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 465 transitions. [2023-11-26 10:44:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-26 10:44:33,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:33,978 INFO L195 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] [2023-11-26 10:44:33,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:44:33,979 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:33,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:33,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1655535219, now seen corresponding path program 1 times [2023-11-26 10:44:33,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:33,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828900441] [2023-11-26 10:44:33,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:33,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:44:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:44:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:44:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:34,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:34,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828900441] [2023-11-26 10:44:34,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828900441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:34,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:34,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:44:34,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530505681] [2023-11-26 10:44:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:34,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:34,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:34,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:34,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:34,129 INFO L87 Difference]: Start difference. First operand 338 states and 465 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:34,514 INFO L93 Difference]: Finished difference Result 629 states and 877 transitions. [2023-11-26 10:44:34,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:44:34,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-26 10:44:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:34,518 INFO L225 Difference]: With dead ends: 629 [2023-11-26 10:44:34,519 INFO L226 Difference]: Without dead ends: 364 [2023-11-26 10:44:34,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:44:34,522 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 119 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:34,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 184 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:44:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-26 10:44:34,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 338. [2023-11-26 10:44:34,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 248 states have (on average 1.3185483870967742) internal successors, (327), 270 states have internal predecessors, (327), 46 states have call successors, (46), 32 states have call predecessors, (46), 43 states have return successors, (91), 48 states have call predecessors, (91), 46 states have call successors, (91) [2023-11-26 10:44:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 464 transitions. [2023-11-26 10:44:34,567 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 464 transitions. Word has length 40 [2023-11-26 10:44:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:34,567 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 464 transitions. [2023-11-26 10:44:34,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 464 transitions. [2023-11-26 10:44:34,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-26 10:44:34,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:34,572 INFO L195 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] [2023-11-26 10:44:34,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:44:34,572 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:34,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:34,573 INFO L85 PathProgramCache]: Analyzing trace with hash -338609487, now seen corresponding path program 1 times [2023-11-26 10:44:34,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:34,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544935354] [2023-11-26 10:44:34,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:34,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:44:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:44:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 10:44:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:34,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:34,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544935354] [2023-11-26 10:44:34,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544935354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:34,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:34,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:44:34,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830557666] [2023-11-26 10:44:34,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:34,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:34,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:34,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:34,718 INFO L87 Difference]: Start difference. First operand 338 states and 464 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:35,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:35,081 INFO L93 Difference]: Finished difference Result 717 states and 1015 transitions. [2023-11-26 10:44:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:44:35,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-26 10:44:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:35,086 INFO L225 Difference]: With dead ends: 717 [2023-11-26 10:44:35,086 INFO L226 Difference]: Without dead ends: 381 [2023-11-26 10:44:35,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:44:35,089 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 114 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:35,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 185 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:44:35,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-26 10:44:35,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 339. [2023-11-26 10:44:35,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 251 states have (on average 1.3107569721115537) internal successors, (329), 272 states have internal predecessors, (329), 45 states have call successors, (45), 31 states have call predecessors, (45), 42 states have return successors, (90), 47 states have call predecessors, (90), 45 states have call successors, (90) [2023-11-26 10:44:35,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 464 transitions. [2023-11-26 10:44:35,136 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 464 transitions. Word has length 40 [2023-11-26 10:44:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:35,136 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 464 transitions. [2023-11-26 10:44:35,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 464 transitions. [2023-11-26 10:44:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-26 10:44:35,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:35,139 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:44:35,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:44:35,139 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:35,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:35,140 INFO L85 PathProgramCache]: Analyzing trace with hash -914265781, now seen corresponding path program 1 times [2023-11-26 10:44:35,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:35,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917471737] [2023-11-26 10:44:35,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:35,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:44:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:35,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:44:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:35,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:44:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 10:44:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917471737] [2023-11-26 10:44:35,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917471737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:35,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:35,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 10:44:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307170862] [2023-11-26 10:44:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:35,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:44:35,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:35,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:44:35,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:44:35,277 INFO L87 Difference]: Start difference. First operand 339 states and 464 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:35,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:35,784 INFO L93 Difference]: Finished difference Result 664 states and 907 transitions. [2023-11-26 10:44:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:44:35,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-11-26 10:44:35,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:35,788 INFO L225 Difference]: With dead ends: 664 [2023-11-26 10:44:35,788 INFO L226 Difference]: Without dead ends: 327 [2023-11-26 10:44:35,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-26 10:44:35,792 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 187 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:35,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 305 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 10:44:35,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-26 10:44:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2023-11-26 10:44:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 239 states have (on average 1.2761506276150627) internal successors, (305), 258 states have internal predecessors, (305), 41 states have call successors, (41), 31 states have call predecessors, (41), 40 states have return successors, (60), 42 states have call predecessors, (60), 41 states have call successors, (60) [2023-11-26 10:44:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 406 transitions. [2023-11-26 10:44:35,828 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 406 transitions. Word has length 43 [2023-11-26 10:44:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:35,828 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 406 transitions. [2023-11-26 10:44:35,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:35,829 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 406 transitions. [2023-11-26 10:44:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-26 10:44:35,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:35,830 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:44:35,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:44:35,831 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:35,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:35,831 INFO L85 PathProgramCache]: Analyzing trace with hash -896017649, now seen corresponding path program 1 times [2023-11-26 10:44:35,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:35,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140736118] [2023-11-26 10:44:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:35,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:35,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:44:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:44:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:36,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:44:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:36,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:44:36,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:36,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140736118] [2023-11-26 10:44:36,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140736118] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:44:36,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472378975] [2023-11-26 10:44:36,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:36,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:44:36,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:44:36,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:44:36,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:44:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:36,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:44:36,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:44:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:44:36,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:44:36,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472378975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:36,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:44:36,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-26 10:44:36,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559277063] [2023-11-26 10:44:36,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:36,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:36,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:36,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:36,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:44:36,433 INFO L87 Difference]: Start difference. First operand 321 states and 406 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:36,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:36,585 INFO L93 Difference]: Finished difference Result 945 states and 1216 transitions. [2023-11-26 10:44:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:36,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-11-26 10:44:36,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:36,591 INFO L225 Difference]: With dead ends: 945 [2023-11-26 10:44:36,592 INFO L226 Difference]: Without dead ends: 626 [2023-11-26 10:44:36,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:44:36,594 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 48 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:36,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 281 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:44:36,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-11-26 10:44:36,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 624. [2023-11-26 10:44:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 464 states have (on average 1.2586206896551724) internal successors, (584), 498 states have internal predecessors, (584), 81 states have call successors, (81), 62 states have call predecessors, (81), 78 states have return successors, (123), 82 states have call predecessors, (123), 81 states have call successors, (123) [2023-11-26 10:44:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 788 transitions. [2023-11-26 10:44:36,668 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 788 transitions. Word has length 43 [2023-11-26 10:44:36,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:36,669 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 788 transitions. [2023-11-26 10:44:36,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:44:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 788 transitions. [2023-11-26 10:44:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-26 10:44:36,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:36,672 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:44:36,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:44:36,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 10:44:36,879 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:36,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:36,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1798882645, now seen corresponding path program 1 times [2023-11-26 10:44:36,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:36,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439683445] [2023-11-26 10:44:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:44:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:36,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 10:44:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:37,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:44:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:37,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:37,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 10:44:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:44:37,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:37,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439683445] [2023-11-26 10:44:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439683445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:37,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:37,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:44:37,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735654109] [2023-11-26 10:44:37,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:37,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:44:37,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:37,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:44:37,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:44:37,049 INFO L87 Difference]: Start difference. First operand 624 states and 788 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:44:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:38,140 INFO L93 Difference]: Finished difference Result 1241 states and 1581 transitions. [2023-11-26 10:44:38,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-26 10:44:38,141 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2023-11-26 10:44:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:38,148 INFO L225 Difference]: With dead ends: 1241 [2023-11-26 10:44:38,148 INFO L226 Difference]: Without dead ends: 619 [2023-11-26 10:44:38,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=254, Invalid=936, Unknown=0, NotChecked=0, Total=1190 [2023-11-26 10:44:38,152 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 286 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:38,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 201 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:44:38,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-11-26 10:44:38,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 608. [2023-11-26 10:44:38,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 448 states have (on average 1.2142857142857142) internal successors, (544), 482 states have internal predecessors, (544), 81 states have call successors, (81), 62 states have call predecessors, (81), 78 states have return successors, (117), 82 states have call predecessors, (117), 81 states have call successors, (117) [2023-11-26 10:44:38,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 742 transitions. [2023-11-26 10:44:38,215 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 742 transitions. Word has length 47 [2023-11-26 10:44:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:38,216 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 742 transitions. [2023-11-26 10:44:38,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:44:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 742 transitions. [2023-11-26 10:44:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:44:38,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:38,221 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-26 10:44:38,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:44:38,221 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:38,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1755578374, now seen corresponding path program 1 times [2023-11-26 10:44:38,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:38,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432931201] [2023-11-26 10:44:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:38,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:44:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:44:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 10:44:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:44:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:44:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 10:44:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:44:38,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:38,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432931201] [2023-11-26 10:44:38,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432931201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:44:38,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413448064] [2023-11-26 10:44:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:38,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:44:38,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:44:38,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:44:38,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:44:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:38,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 10:44:38,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:44:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-26 10:44:38,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:44:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 10:44:39,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413448064] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:44:39,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:44:39,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 8] total 19 [2023-11-26 10:44:39,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993876428] [2023-11-26 10:44:39,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:44:39,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-26 10:44:39,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:39,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-26 10:44:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-26 10:44:39,211 INFO L87 Difference]: Start difference. First operand 608 states and 742 transitions. Second operand has 19 states, 18 states have (on average 5.611111111111111) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-26 10:44:40,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:40,817 INFO L93 Difference]: Finished difference Result 1598 states and 2061 transitions. [2023-11-26 10:44:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-26 10:44:40,817 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.611111111111111) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 6 states have call successors, (16) Word has length 68 [2023-11-26 10:44:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:40,818 INFO L225 Difference]: With dead ends: 1598 [2023-11-26 10:44:40,819 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 10:44:40,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 145 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=989, Invalid=3171, Unknown=0, NotChecked=0, Total=4160 [2023-11-26 10:44:40,826 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 636 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:40,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 420 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 10:44:40,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 10:44:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 10:44:40,827 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) [2023-11-26 10:44:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 10:44:40,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2023-11-26 10:44:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:44:40,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.611111111111111) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-26 10:44:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 10:44:40,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 10:44:40,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:44:40,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:44:41,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 10:44:41,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 10:44:43,945 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 641 647) no Hoare annotation was computed. [2023-11-26 10:44:43,945 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 641 647) the Hoare annotation is: true [2023-11-26 10:44:43,946 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 450 461) the Hoare annotation is: (let ((.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (< ~pumpRunning~0 1)) (.cse0 (< 2 ~waterLevel~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse6 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse7 (< |old(~methaneLevelCritical~0)| 1)) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse5 .cse3 .cse4) (or .cse0 .cse1 .cse6 .cse7 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse4))) [2023-11-26 10:44:43,946 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 450 461) no Hoare annotation was computed. [2023-11-26 10:44:43,946 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 450 461) no Hoare annotation was computed. [2023-11-26 10:44:43,946 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 896 925) no Hoare annotation was computed. [2023-11-26 10:44:43,946 INFO L899 garLoopResultBuilder]: For program point L921(lines 896 925) no Hoare annotation was computed. [2023-11-26 10:44:43,946 INFO L899 garLoopResultBuilder]: For program point L917(line 917) no Hoare annotation was computed. [2023-11-26 10:44:43,946 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2023-11-26 10:44:43,947 INFO L902 garLoopResultBuilder]: At program point L910-1(lines 910 914) the Hoare annotation is: true [2023-11-26 10:44:43,947 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 896 925) the Hoare annotation is: true [2023-11-26 10:44:43,947 INFO L902 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: true [2023-11-26 10:44:43,947 INFO L902 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: true [2023-11-26 10:44:43,947 INFO L899 garLoopResultBuilder]: For program point L902-1(line 902) no Hoare annotation was computed. [2023-11-26 10:44:43,947 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 596) no Hoare annotation was computed. [2023-11-26 10:44:43,947 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2023-11-26 10:44:43,948 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse5 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse2 .cse3) (or .cse4 .cse6 .cse5 .cse1 .cse2) (or .cse0 .cse6 .cse1 .cse2))) [2023-11-26 10:44:43,948 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 592) no Hoare annotation was computed. [2023-11-26 10:44:43,948 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 595) no Hoare annotation was computed. [2023-11-26 10:44:43,948 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 567 599) no Hoare annotation was computed. [2023-11-26 10:44:43,949 INFO L895 garLoopResultBuilder]: At program point L574(line 574) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse11 (<= ~waterLevel~0 1)) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse11 .cse12)) (.cse2 (and .cse7 .cse11 .cse12)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse10 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse9 (and (<= 1 ~pumpRunning~0) .cse8)) (.cse4 (= 0 ~systemActive~0)) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (and .cse7 .cse8) .cse9 .cse4 .cse5 .cse10) (or .cse0 .cse2 .cse3 .cse4 .cse5 .cse10) (or (and .cse7 .cse11 .cse8) .cse6 .cse1 .cse9 .cse4 .cse5)))) [2023-11-26 10:44:43,949 INFO L899 garLoopResultBuilder]: For program point L574-1(line 574) no Hoare annotation was computed. [2023-11-26 10:44:43,949 INFO L895 garLoopResultBuilder]: At program point L694(line 694) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse2 .cse3) (or .cse5 .cse6 .cse2 .cse3 .cse4))) [2023-11-26 10:44:43,949 INFO L899 garLoopResultBuilder]: For program point L694-1(lines 675 699) no Hoare annotation was computed. [2023-11-26 10:44:43,950 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 628 634) no Hoare annotation was computed. [2023-11-26 10:44:43,950 INFO L899 garLoopResultBuilder]: For program point L818(lines 818 822) no Hoare annotation was computed. [2023-11-26 10:44:43,950 INFO L899 garLoopResultBuilder]: For program point L818-2(lines 818 822) no Hoare annotation was computed. [2023-11-26 10:44:43,950 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2023-11-26 10:44:43,950 INFO L899 garLoopResultBuilder]: For program point L430-2(lines 426 437) no Hoare annotation was computed. [2023-11-26 10:44:43,951 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 617 640) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse8)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse2 .cse3) (or .cse5 .cse6 .cse2 .cse3 .cse4) (or .cse7 .cse0 .cse1 .cse2 .cse3)))) [2023-11-26 10:44:43,951 INFO L899 garLoopResultBuilder]: For program point L621-1(lines 620 639) no Hoare annotation was computed. [2023-11-26 10:44:43,951 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 691) no Hoare annotation was computed. [2023-11-26 10:44:43,951 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 617 640) no Hoare annotation was computed. [2023-11-26 10:44:43,952 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 605) no Hoare annotation was computed. [2023-11-26 10:44:43,952 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 696) no Hoare annotation was computed. [2023-11-26 10:44:43,952 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 462 470) the Hoare annotation is: true [2023-11-26 10:44:43,952 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 462 470) no Hoare annotation was computed. [2023-11-26 10:44:43,952 INFO L895 garLoopResultBuilder]: At program point L886(lines 839 887) the Hoare annotation is: false [2023-11-26 10:44:43,952 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 984) no Hoare annotation was computed. [2023-11-26 10:44:43,953 INFO L899 garLoopResultBuilder]: For program point L977-2(lines 977 984) no Hoare annotation was computed. [2023-11-26 10:44:43,953 INFO L899 garLoopResultBuilder]: For program point L841(lines 840 885) no Hoare annotation was computed. [2023-11-26 10:44:43,953 INFO L899 garLoopResultBuilder]: For program point L870(lines 870 881) no Hoare annotation was computed. [2023-11-26 10:44:43,953 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-11-26 10:44:43,954 INFO L895 garLoopResultBuilder]: At program point L883(lines 840 885) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 (<= ~waterLevel~0 1) .cse2 .cse3 .cse5))) [2023-11-26 10:44:43,954 INFO L899 garLoopResultBuilder]: For program point L850(lines 850 856) no Hoare annotation was computed. [2023-11-26 10:44:43,954 INFO L899 garLoopResultBuilder]: For program point L850-1(lines 850 856) no Hoare annotation was computed. [2023-11-26 10:44:43,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 10:44:43,954 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 880) no Hoare annotation was computed. [2023-11-26 10:44:43,954 INFO L895 garLoopResultBuilder]: At program point L876-2(lines 870 881) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 .cse2 .cse3 .cse4 .cse5))) [2023-11-26 10:44:43,955 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 10:44:43,955 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 866) no Hoare annotation was computed. [2023-11-26 10:44:43,955 INFO L899 garLoopResultBuilder]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2023-11-26 10:44:43,955 INFO L899 garLoopResultBuilder]: For program point L889(lines 830 893) no Hoare annotation was computed. [2023-11-26 10:44:43,955 INFO L895 garLoopResultBuilder]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse7 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 (<= ~waterLevel~0 1) .cse2 .cse3 .cse5))) [2023-11-26 10:44:43,956 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 803) no Hoare annotation was computed. [2023-11-26 10:44:43,956 INFO L899 garLoopResultBuilder]: For program point L799-2(lines 799 803) no Hoare annotation was computed. [2023-11-26 10:44:43,956 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0)) (.cse6 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 .cse6 .cse7) (or .cse0 .cse2 .cse3 .cse7) (or .cse4 .cse5 .cse1 .cse3 .cse6))) [2023-11-26 10:44:43,956 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 665) no Hoare annotation was computed. [2023-11-26 10:44:43,956 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 670) no Hoare annotation was computed. [2023-11-26 10:44:43,957 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 649 673) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 2 ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (< 1 ~waterLevel~0)) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse4 (= 0 ~systemActive~0)) (.cse8 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse3 .cse7 .cse4) (or .cse0 .cse1 .cse2 .cse4 .cse8) (or .cse5 .cse6 .cse7 .cse4 .cse8))) [2023-11-26 10:44:43,957 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 503 516) no Hoare annotation was computed. [2023-11-26 10:44:43,957 INFO L895 garLoopResultBuilder]: At program point L668(line 668) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse7 (< ~methaneLevelCritical~0 1)) (.cse5 (< 2 ~waterLevel~0)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse4 .cse7) (or .cse0 .cse1 .cse3 .cse4 .cse7) (or .cse5 .cse6 .cse2 .cse4))) [2023-11-26 10:44:43,957 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 649 673) no Hoare annotation was computed. [2023-11-26 10:44:43,957 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 513) no Hoare annotation was computed. [2023-11-26 10:44:43,958 INFO L899 garLoopResultBuilder]: For program point L668-1(lines 649 673) no Hoare annotation was computed. [2023-11-26 10:44:43,958 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2023-11-26 10:44:43,958 INFO L899 garLoopResultBuilder]: For program point L716-2(lines 709 725) no Hoare annotation was computed. [2023-11-26 10:44:43,958 INFO L895 garLoopResultBuilder]: At program point L739(line 739) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< 1 ~waterLevel~0)) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not .cse10)) (.cse6 (and .cse9 (<= 1 |processEnvironment__wrappee__highWaterSensor_~tmp~4#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse3 (= 0 ~systemActive~0)) (.cse8 (< ~methaneLevelCritical~0 1)) (.cse7 (and .cse9 (<= ~waterLevel~0 1) .cse10))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse1 .cse3 .cse7) (or .cse0 .cse2 .cse3 .cse8) (or .cse4 .cse5 .cse6 .cse3 .cse8 .cse7)))) [2023-11-26 10:44:43,958 INFO L899 garLoopResultBuilder]: For program point L739-1(line 739) no Hoare annotation was computed. [2023-11-26 10:44:43,959 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 438 449) no Hoare annotation was computed. [2023-11-26 10:44:43,959 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 438 449) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse6 .cse5 .cse1 .cse2) (or .cse6 .cse1 .cse2 .cse3 .cse4))) [2023-11-26 10:44:43,959 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 438 449) no Hoare annotation was computed. [2023-11-26 10:44:43,962 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:43,964 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:44:43,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:44:43 BoogieIcfgContainer [2023-11-26 10:44:43,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:44:43,990 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:44:43,990 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:44:43,990 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:44:43,991 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:31" (3/4) ... [2023-11-26 10:44:43,993 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:44:43,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-26 10:44:43,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 10:44:43,998 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 10:44:43,998 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 10:44:43,998 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-26 10:44:43,998 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 10:44:43,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 10:44:44,008 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-11-26 10:44:44,009 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 10:44:44,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 10:44:44,011 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:44:44,012 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:44:44,139 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:44:44,140 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:44:44,140 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:44:44,141 INFO L158 Benchmark]: Toolchain (without parser) took 14276.68ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 100.3MB in the beginning and 156.2MB in the end (delta: -55.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-11-26 10:44:44,141 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:44:44,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.46ms. Allocated memory is still 146.8MB. Free memory was 99.9MB in the beginning and 80.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:44:44,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.52ms. Allocated memory is still 146.8MB. Free memory was 80.3MB in the beginning and 77.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:44:44,143 INFO L158 Benchmark]: Boogie Preprocessor took 57.80ms. Allocated memory is still 146.8MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:44:44,143 INFO L158 Benchmark]: RCFGBuilder took 748.08ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 75.4MB in the beginning and 139.8MB in the end (delta: -64.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2023-11-26 10:44:44,144 INFO L158 Benchmark]: TraceAbstraction took 12704.55ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 138.9MB in the beginning and 164.6MB in the end (delta: -25.7MB). Peak memory consumption was 116.0MB. Max. memory is 16.1GB. [2023-11-26 10:44:44,144 INFO L158 Benchmark]: Witness Printer took 150.75ms. Allocated memory is still 224.4MB. Free memory was 164.6MB in the beginning and 156.2MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:44:44,147 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.46ms. Allocated memory is still 146.8MB. Free memory was 99.9MB in the beginning and 80.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.52ms. Allocated memory is still 146.8MB. Free memory was 80.3MB in the beginning and 77.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.80ms. Allocated memory is still 146.8MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 748.08ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 75.4MB in the beginning and 139.8MB in the end (delta: -64.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12704.55ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 138.9MB in the beginning and 164.6MB in the end (delta: -25.7MB). Peak memory consumption was 116.0MB. Max. memory is 16.1GB. * Witness Printer took 150.75ms. Allocated memory is still 224.4MB. Free memory was 164.6MB in the beginning and 156.2MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] - GenericResultAtLocation [Line: 564]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [564] - GenericResultAtLocation [Line: 600]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [600] - GenericResultAtLocation [Line: 609]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [609] - GenericResultAtLocation [Line: 828]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [828] - GenericResultAtLocation [Line: 894]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [894] * 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: 605]: 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, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1923 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1895 mSDsluCounter, 2342 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1640 mSDsCounter, 653 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3384 IncrementalHoareTripleChecker+Invalid, 4037 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 653 mSolverCounterUnsat, 702 mSDtfsCounter, 3384 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 271 SyntacticMatches, 6 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1428 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=624occurred in iteration=10, InterpolantAutomatonStates: 147, 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, 131 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 1050 PreInvPairs, 1183 NumberOfFragments, 1114 HoareAnnotationTreeSize, 1050 FomulaSimplifications, 1404 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 21 FomulaSimplificationsInter, 4681 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 550 NumberOfCodeBlocks, 550 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 1303 SizeOfPredicates, 5 NumberOfNonLiveVariables, 490 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 56/74 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: (((((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1)) || ((((((1 <= pumpRunning) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || ((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1))) || ((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (tmp == 1))) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-26 10:44:44,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b0c1c5-bd18-44d1-950f-b946734fee3a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE