./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX --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 bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:53:15,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:53:15,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:53:15,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:53:15,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:53:15,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:53:15,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:53:15,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:53:15,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:53:15,264 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:53:15,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:53:15,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:53:15,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:53:15,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:53:15,266 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:53:15,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:53:15,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:53:15,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:53:15,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:53:15,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:53:15,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:53:15,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:53:15,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:53:15,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:53:15,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:53:15,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:53:15,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:53:15,277 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:53:15,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:53:15,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:53:15,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:53:15,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:53:15,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:53:15,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:53:15,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:53:15,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:53:15,279 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:53:15,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:53:15,280 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:53:15,280 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:53:15,280 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:53:15,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:53:15,282 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_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 [2024-11-08 16:53:15,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:53:15,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:53:15,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:53:15,629 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:53:15,630 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:53:15,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c Unable to find full path for "g++" [2024-11-08 16:53:17,642 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:53:17,917 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:53:17,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2024-11-08 16:53:17,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/data/0d854f900/df294e2802f544c6924985d9efb9ab18/FLAG835a772f6 [2024-11-08 16:53:17,959 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/data/0d854f900/df294e2802f544c6924985d9efb9ab18 [2024-11-08 16:53:17,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:53:17,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:53:17,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:53:17,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:53:17,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:53:17,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:53:17" (1/1) ... [2024-11-08 16:53:17,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7666eb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:17, skipping insertion in model container [2024-11-08 16:53:17,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:53:17" (1/1) ... [2024-11-08 16:53:18,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:53:18,419 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2024-11-08 16:53:18,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:53:18,439 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:53:18,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-08 16:53:18,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-11-08 16:53:18,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [362] [2024-11-08 16:53:18,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [390] [2024-11-08 16:53:18,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2024-11-08 16:53:18,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [855] [2024-11-08 16:53:18,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] [2024-11-08 16:53:18,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [967] [2024-11-08 16:53:18,550 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2024-11-08 16:53:18,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:53:18,572 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:53:18,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18 WrapperNode [2024-11-08 16:53:18,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:53:18,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:53:18,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:53:18,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:53:18,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,628 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 230 [2024-11-08 16:53:18,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:53:18,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:53:18,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:53:18,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:53:18,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,660 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 16:53:18,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:53:18,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:53:18,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:53:18,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:53:18,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (1/1) ... [2024-11-08 16:53:18,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:53:18,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:53:18,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:53:18,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:53:18,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:53:18,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 16:53:18,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 16:53:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 16:53:18,760 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 16:53:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 16:53:18,760 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 16:53:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 16:53:18,760 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 16:53:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 16:53:18,760 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 16:53:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-08 16:53:18,761 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2024-11-08 16:53:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 16:53:18,761 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 16:53:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:53:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 16:53:18,762 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 16:53:18,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:53:18,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:53:18,839 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:53:18,841 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:53:19,172 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-08 16:53:19,172 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:53:19,189 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:53:19,189 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 16:53:19,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:53:19 BoogieIcfgContainer [2024-11-08 16:53:19,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:53:19,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:53:19,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:53:19,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:53:19,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:53:17" (1/3) ... [2024-11-08 16:53:19,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50df3c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:53:19, skipping insertion in model container [2024-11-08 16:53:19,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:53:18" (2/3) ... [2024-11-08 16:53:19,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50df3c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:53:19, skipping insertion in model container [2024-11-08 16:53:19,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:53:19" (3/3) ... [2024-11-08 16:53:19,199 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2024-11-08 16:53:19,215 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:53:19,216 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:53:19,295 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:53:19,302 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37fb5aa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:53:19,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:53:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 82 states have internal predecessors, (100), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-08 16:53:19,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 16:53:19,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:19,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:19,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:19,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:19,329 INFO L85 PathProgramCache]: Analyzing trace with hash -923468807, now seen corresponding path program 1 times [2024-11-08 16:53:19,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:19,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997879008] [2024-11-08 16:53:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:19,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:19,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:19,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997879008] [2024-11-08 16:53:19,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997879008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:19,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:19,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:53:19,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135211522] [2024-11-08 16:53:19,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:19,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:53:19,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:19,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:53:19,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:53:19,549 INFO L87 Difference]: Start difference. First operand has 96 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 82 states have internal predecessors, (100), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:53:19,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:19,580 INFO L93 Difference]: Finished difference Result 184 states and 251 transitions. [2024-11-08 16:53:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:53:19,584 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-08 16:53:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:19,592 INFO L225 Difference]: With dead ends: 184 [2024-11-08 16:53:19,593 INFO L226 Difference]: Without dead ends: 87 [2024-11-08 16:53:19,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:53:19,600 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:19,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:53:19,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-08 16:53:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-08 16:53:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 16:53:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2024-11-08 16:53:19,650 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 19 [2024-11-08 16:53:19,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:19,650 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2024-11-08 16:53:19,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:53:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2024-11-08 16:53:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 16:53:19,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:19,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:19,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:53:19,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:19,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:19,655 INFO L85 PathProgramCache]: Analyzing trace with hash 428064129, now seen corresponding path program 1 times [2024-11-08 16:53:19,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:19,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299464134] [2024-11-08 16:53:19,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:19,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:19,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:19,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299464134] [2024-11-08 16:53:19,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299464134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:19,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:19,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:53:19,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926107236] [2024-11-08 16:53:19,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:19,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:53:19,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:53:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:53:19,899 INFO L87 Difference]: Start difference. First operand 87 states and 113 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:53:19,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:19,932 INFO L93 Difference]: Finished difference Result 139 states and 181 transitions. [2024-11-08 16:53:19,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:53:19,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 16:53:19,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:19,935 INFO L225 Difference]: With dead ends: 139 [2024-11-08 16:53:19,935 INFO L226 Difference]: Without dead ends: 78 [2024-11-08 16:53:19,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:53:19,937 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 13 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:19,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 183 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:53:19,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-08 16:53:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-08 16:53:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 68 states have internal predecessors, (79), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 16:53:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2024-11-08 16:53:19,959 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 20 [2024-11-08 16:53:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:19,959 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2024-11-08 16:53:19,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:53:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2024-11-08 16:53:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 16:53:19,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:19,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:19,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:53:19,964 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:19,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash 479833994, now seen corresponding path program 1 times [2024-11-08 16:53:19,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:19,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738958249] [2024-11-08 16:53:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:20,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:20,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738958249] [2024-11-08 16:53:20,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738958249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:20,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:20,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:53:20,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051661806] [2024-11-08 16:53:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:20,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:53:20,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:20,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:53:20,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:53:20,076 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:53:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:20,112 INFO L93 Difference]: Finished difference Result 149 states and 196 transitions. [2024-11-08 16:53:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:53:20,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-08 16:53:20,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:20,114 INFO L225 Difference]: With dead ends: 149 [2024-11-08 16:53:20,114 INFO L226 Difference]: Without dead ends: 78 [2024-11-08 16:53:20,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:53:20,117 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:20,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 99 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:53:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-08 16:53:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-08 16:53:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 68 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 16:53:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-11-08 16:53:20,141 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 25 [2024-11-08 16:53:20,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:20,142 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-11-08 16:53:20,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:53:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-11-08 16:53:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 16:53:20,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:20,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:20,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:53:20,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:20,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1479646756, now seen corresponding path program 1 times [2024-11-08 16:53:20,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780557316] [2024-11-08 16:53:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:20,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:20,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:53:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:20,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780557316] [2024-11-08 16:53:20,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780557316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:20,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:20,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:53:20,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214635185] [2024-11-08 16:53:20,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:20,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:53:20,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:53:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:53:20,295 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:53:20,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:20,508 INFO L93 Difference]: Finished difference Result 220 states and 285 transitions. [2024-11-08 16:53:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:53:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 34 [2024-11-08 16:53:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:20,511 INFO L225 Difference]: With dead ends: 220 [2024-11-08 16:53:20,511 INFO L226 Difference]: Without dead ends: 149 [2024-11-08 16:53:20,512 INFO L431 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 [2024-11-08 16:53:20,513 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 137 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:20,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 199 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:53:20,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-08 16:53:20,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 143. [2024-11-08 16:53:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 118 states have internal predecessors, (141), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2024-11-08 16:53:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 180 transitions. [2024-11-08 16:53:20,537 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 180 transitions. Word has length 34 [2024-11-08 16:53:20,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:20,538 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 180 transitions. [2024-11-08 16:53:20,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 16:53:20,538 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 180 transitions. [2024-11-08 16:53:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 16:53:20,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:20,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:20,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:53:20,543 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:20,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:20,544 INFO L85 PathProgramCache]: Analyzing trace with hash 73058236, now seen corresponding path program 1 times [2024-11-08 16:53:20,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:20,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160835263] [2024-11-08 16:53:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:20,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:20,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:53:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:20,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:20,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:20,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160835263] [2024-11-08 16:53:20,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160835263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:20,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:20,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:53:20,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251296471] [2024-11-08 16:53:20,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:20,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:53:20,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:20,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:53:20,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:53:20,769 INFO L87 Difference]: Start difference. First operand 143 states and 180 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:53:20,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:20,987 INFO L93 Difference]: Finished difference Result 284 states and 364 transitions. [2024-11-08 16:53:20,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:53:20,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2024-11-08 16:53:20,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:20,990 INFO L225 Difference]: With dead ends: 284 [2024-11-08 16:53:20,990 INFO L226 Difference]: Without dead ends: 148 [2024-11-08 16:53:20,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:53:20,992 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 56 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:20,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 389 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:53:20,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-08 16:53:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-08 16:53:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 121 states have internal predecessors, (144), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2024-11-08 16:53:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 183 transitions. [2024-11-08 16:53:21,017 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 183 transitions. Word has length 44 [2024-11-08 16:53:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:21,018 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 183 transitions. [2024-11-08 16:53:21,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:53:21,018 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 183 transitions. [2024-11-08 16:53:21,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 16:53:21,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:21,019 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:21,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:53:21,020 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:21,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:21,020 INFO L85 PathProgramCache]: Analyzing trace with hash -948010118, now seen corresponding path program 1 times [2024-11-08 16:53:21,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:21,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397756842] [2024-11-08 16:53:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:21,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:21,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:53:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:21,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:21,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:21,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397756842] [2024-11-08 16:53:21,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397756842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:21,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:21,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:53:21,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601819102] [2024-11-08 16:53:21,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:21,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:53:21,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:21,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:53:21,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:53:21,188 INFO L87 Difference]: Start difference. First operand 146 states and 183 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:53:21,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:21,363 INFO L93 Difference]: Finished difference Result 289 states and 375 transitions. [2024-11-08 16:53:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:53:21,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2024-11-08 16:53:21,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:21,365 INFO L225 Difference]: With dead ends: 289 [2024-11-08 16:53:21,366 INFO L226 Difference]: Without dead ends: 150 [2024-11-08 16:53:21,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:53:21,368 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 140 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:21,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 288 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:53:21,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-08 16:53:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-08 16:53:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 115 states have (on average 1.2695652173913043) internal successors, (146), 123 states have internal predecessors, (146), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2024-11-08 16:53:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2024-11-08 16:53:21,388 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 44 [2024-11-08 16:53:21,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:21,389 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2024-11-08 16:53:21,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:53:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2024-11-08 16:53:21,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 16:53:21,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:21,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:21,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:53:21,391 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:21,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1352812472, now seen corresponding path program 1 times [2024-11-08 16:53:21,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:21,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901165130] [2024-11-08 16:53:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:21,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:21,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:53:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:21,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:21,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:21,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901165130] [2024-11-08 16:53:21,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901165130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:21,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:21,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:53:21,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992588807] [2024-11-08 16:53:21,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:21,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:53:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:21,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:53:21,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:53:21,535 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 16:53:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:21,828 INFO L93 Difference]: Finished difference Result 414 states and 543 transitions. [2024-11-08 16:53:21,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:53:21,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-08 16:53:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:21,830 INFO L225 Difference]: With dead ends: 414 [2024-11-08 16:53:21,831 INFO L226 Difference]: Without dead ends: 273 [2024-11-08 16:53:21,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:53:21,832 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 202 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:21,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 308 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:53:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-08 16:53:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2024-11-08 16:53:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 204 states have (on average 1.25) internal successors, (255), 216 states have internal predecessors, (255), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2024-11-08 16:53:21,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 339 transitions. [2024-11-08 16:53:21,886 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 339 transitions. Word has length 44 [2024-11-08 16:53:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:21,887 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 339 transitions. [2024-11-08 16:53:21,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 16:53:21,889 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 339 transitions. [2024-11-08 16:53:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-08 16:53:21,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:21,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:21,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:53:21,895 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:21,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:21,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1601860581, now seen corresponding path program 1 times [2024-11-08 16:53:21,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:21,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049685133] [2024-11-08 16:53:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:21,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:53:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:53:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:22,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:22,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049685133] [2024-11-08 16:53:22,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049685133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:22,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:22,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:53:22,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318371593] [2024-11-08 16:53:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:22,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:53:22,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:22,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:53:22,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:53:22,057 INFO L87 Difference]: Start difference. First operand 265 states and 339 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-11-08 16:53:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:22,300 INFO L93 Difference]: Finished difference Result 523 states and 670 transitions. [2024-11-08 16:53:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:53:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 46 [2024-11-08 16:53:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:22,306 INFO L225 Difference]: With dead ends: 523 [2024-11-08 16:53:22,307 INFO L226 Difference]: Without dead ends: 265 [2024-11-08 16:53:22,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:53:22,308 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 107 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:22,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 344 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:53:22,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-08 16:53:22,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2024-11-08 16:53:22,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 202 states have (on average 1.2425742574257426) internal successors, (251), 214 states have internal predecessors, (251), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2024-11-08 16:53:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 335 transitions. [2024-11-08 16:53:22,360 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 335 transitions. Word has length 46 [2024-11-08 16:53:22,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:22,361 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 335 transitions. [2024-11-08 16:53:22,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-11-08 16:53:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 335 transitions. [2024-11-08 16:53:22,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 16:53:22,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:22,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:22,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:53:22,365 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:22,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1143963170, now seen corresponding path program 1 times [2024-11-08 16:53:22,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:22,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453286830] [2024-11-08 16:53:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:22,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:53:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 16:53:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453286830] [2024-11-08 16:53:22,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453286830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:22,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:53:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:53:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066490769] [2024-11-08 16:53:22,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:22,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:53:22,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:53:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:53:22,526 INFO L87 Difference]: Start difference. First operand 263 states and 335 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 16:53:23,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:23,107 INFO L93 Difference]: Finished difference Result 548 states and 721 transitions. [2024-11-08 16:53:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:53:23,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-08 16:53:23,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:23,110 INFO L225 Difference]: With dead ends: 548 [2024-11-08 16:53:23,111 INFO L226 Difference]: Without dead ends: 338 [2024-11-08 16:53:23,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:53:23,112 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 185 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:23,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 449 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:53:23,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-08 16:53:23,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 302. [2024-11-08 16:53:23,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 233 states have (on average 1.2188841201716738) internal successors, (284), 249 states have internal predecessors, (284), 32 states have call successors, (32), 28 states have call predecessors, (32), 36 states have return successors, (69), 34 states have call predecessors, (69), 32 states have call successors, (69) [2024-11-08 16:53:23,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 385 transitions. [2024-11-08 16:53:23,159 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 385 transitions. Word has length 48 [2024-11-08 16:53:23,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:23,160 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 385 transitions. [2024-11-08 16:53:23,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 16:53:23,160 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 385 transitions. [2024-11-08 16:53:23,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 16:53:23,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:23,162 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:23,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:53:23,163 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:23,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:23,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1728342308, now seen corresponding path program 1 times [2024-11-08 16:53:23,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:23,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120409164] [2024-11-08 16:53:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:23,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:23,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:53:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:23,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:53:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:23,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 16:53:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:23,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:23,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 16:53:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:23,286 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:53:23,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:23,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120409164] [2024-11-08 16:53:23,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120409164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:53:23,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011898314] [2024-11-08 16:53:23,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:23,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:23,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:53:23,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:53:23,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:53:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:23,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:53:23,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:53:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:23,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:53:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:53:23,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011898314] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:53:23,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:53:23,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2024-11-08 16:53:23,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003577135] [2024-11-08 16:53:23,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:53:23,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:53:23,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:23,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:53:23,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:53:23,808 INFO L87 Difference]: Start difference. First operand 302 states and 385 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 16:53:25,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:25,375 INFO L93 Difference]: Finished difference Result 716 states and 969 transitions. [2024-11-08 16:53:25,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-08 16:53:25,376 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2024-11-08 16:53:25,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:25,381 INFO L225 Difference]: With dead ends: 716 [2024-11-08 16:53:25,381 INFO L226 Difference]: Without dead ends: 469 [2024-11-08 16:53:25,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 166 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=421, Invalid=2129, Unknown=0, NotChecked=0, Total=2550 [2024-11-08 16:53:25,385 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 662 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:25,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 632 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:53:25,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-08 16:53:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 417. [2024-11-08 16:53:25,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 318 states have (on average 1.2138364779874213) internal successors, (386), 341 states have internal predecessors, (386), 47 states have call successors, (47), 41 states have call predecessors, (47), 51 states have return successors, (107), 46 states have call predecessors, (107), 47 states have call successors, (107) [2024-11-08 16:53:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 540 transitions. [2024-11-08 16:53:25,434 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 540 transitions. Word has length 77 [2024-11-08 16:53:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:25,435 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 540 transitions. [2024-11-08 16:53:25,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 16:53:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 540 transitions. [2024-11-08 16:53:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:53:25,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:25,438 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:25,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:53:25,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 16:53:25,640 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:25,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:25,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1667490530, now seen corresponding path program 1 times [2024-11-08 16:53:25,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:25,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006096674] [2024-11-08 16:53:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:25,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:25,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:53:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:25,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:53:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:25,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 16:53:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:25,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:25,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:53:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:53:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 16:53:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 16:53:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 16:53:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 16:53:26,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:26,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006096674] [2024-11-08 16:53:26,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006096674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:53:26,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888144652] [2024-11-08 16:53:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:26,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:26,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:53:26,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:53:26,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:53:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:26,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 16:53:26,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:53:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 80 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:53:26,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:53:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 16:53:27,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888144652] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:53:27,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:53:27,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 17 [2024-11-08 16:53:27,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572181419] [2024-11-08 16:53:27,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:53:27,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 16:53:27,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:27,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 16:53:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:53:27,033 INFO L87 Difference]: Start difference. First operand 417 states and 540 transitions. Second operand has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 15 states have internal predecessors, (143), 6 states have call successors, (27), 8 states have call predecessors, (27), 6 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-08 16:53:28,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:28,290 INFO L93 Difference]: Finished difference Result 1139 states and 1568 transitions. [2024-11-08 16:53:28,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 16:53:28,290 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 15 states have internal predecessors, (143), 6 states have call successors, (27), 8 states have call predecessors, (27), 6 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 134 [2024-11-08 16:53:28,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:28,295 INFO L225 Difference]: With dead ends: 1139 [2024-11-08 16:53:28,295 INFO L226 Difference]: Without dead ends: 776 [2024-11-08 16:53:28,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 286 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 16:53:28,298 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 641 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:28,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 872 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:53:28,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-11-08 16:53:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 677. [2024-11-08 16:53:28,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 514 states have (on average 1.2081712062256809) internal successors, (621), 545 states have internal predecessors, (621), 78 states have call successors, (78), 71 states have call predecessors, (78), 84 states have return successors, (166), 76 states have call predecessors, (166), 78 states have call successors, (166) [2024-11-08 16:53:28,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 865 transitions. [2024-11-08 16:53:28,361 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 865 transitions. Word has length 134 [2024-11-08 16:53:28,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:28,362 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 865 transitions. [2024-11-08 16:53:28,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 15 states have internal predecessors, (143), 6 states have call successors, (27), 8 states have call predecessors, (27), 6 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-08 16:53:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 865 transitions. [2024-11-08 16:53:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:53:28,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:28,366 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:28,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:53:28,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:28,566 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:28,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:28,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1721883428, now seen corresponding path program 1 times [2024-11-08 16:53:28,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:28,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988188407] [2024-11-08 16:53:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:28,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:53:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 16:53:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 16:53:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:53:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:53:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 16:53:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 16:53:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 16:53:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 16:53:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 16:53:28,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988188407] [2024-11-08 16:53:28,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988188407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:53:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12169381] [2024-11-08 16:53:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:28,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:28,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:53:28,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:53:28,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:53:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:28,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:53:28,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:53:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-08 16:53:28,935 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:53:28,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12169381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:53:28,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:53:28,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2024-11-08 16:53:28,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246612094] [2024-11-08 16:53:28,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:53:28,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:53:28,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:28,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:53:28,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:53:28,937 INFO L87 Difference]: Start difference. First operand 677 states and 865 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 16:53:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:28,981 INFO L93 Difference]: Finished difference Result 898 states and 1135 transitions. [2024-11-08 16:53:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:53:28,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 134 [2024-11-08 16:53:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:28,983 INFO L225 Difference]: With dead ends: 898 [2024-11-08 16:53:28,983 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 16:53:28,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:53:28,985 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:28,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 364 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:53:28,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 16:53:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 16:53:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:53:28,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 16:53:28,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2024-11-08 16:53:28,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:28,988 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 16:53:28,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 16:53:28,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 16:53:28,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 16:53:28,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 16:53:29,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 16:53:29,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:29,198 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:29,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 16:53:30,726 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:53:30,747 WARN L162 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-08 16:53:30,766 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-08 16:53:30,773 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-08 16:53:30,777 WARN L162 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-08 16:53:30,786 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__lowWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-08 16:53:30,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:53:30 BoogieIcfgContainer [2024-11-08 16:53:30,788 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:53:30,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:53:30,788 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:53:30,788 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:53:30,789 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:53:19" (3/4) ... [2024-11-08 16:53:30,793 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:53:30,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 16:53:30,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 16:53:30,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 16:53:30,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 16:53:30,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 16:53:30,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 16:53:30,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 16:53:30,799 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2024-11-08 16:53:30,805 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-08 16:53:30,805 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 16:53:30,806 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 16:53:30,806 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 16:53:30,806 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 16:53:30,942 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:53:30,942 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:53:30,942 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:53:30,943 INFO L158 Benchmark]: Toolchain (without parser) took 12978.52ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 132.6MB in the beginning and 164.3MB in the end (delta: -31.7MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-11-08 16:53:30,943 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:53:30,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.15ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 126.2MB in the end (delta: 6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 16:53:30,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.77ms. Allocated memory is still 165.7MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:53:30,944 INFO L158 Benchmark]: Boogie Preprocessor took 46.27ms. Allocated memory is still 165.7MB. Free memory was 124.1MB in the beginning and 121.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:53:30,944 INFO L158 Benchmark]: RCFGBuilder took 514.34ms. Allocated memory is still 165.7MB. Free memory was 121.3MB in the beginning and 102.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 16:53:30,945 INFO L158 Benchmark]: TraceAbstraction took 11594.77ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 101.7MB in the beginning and 172.7MB in the end (delta: -71.0MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. [2024-11-08 16:53:30,945 INFO L158 Benchmark]: Witness Printer took 154.37ms. Allocated memory is still 239.1MB. Free memory was 172.7MB in the beginning and 164.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 16:53:30,946 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 606.15ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 126.2MB in the end (delta: 6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.77ms. Allocated memory is still 165.7MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.27ms. Allocated memory is still 165.7MB. Free memory was 124.1MB in the beginning and 121.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 514.34ms. Allocated memory is still 165.7MB. Free memory was 121.3MB in the beginning and 102.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11594.77ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 101.7MB in the beginning and 172.7MB in the end (delta: -71.0MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. * Witness Printer took 154.37ms. Allocated memory is still 239.1MB. Free memory was 172.7MB in the beginning and 164.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 362]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [362] - GenericResultAtLocation [Line: 390]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [390] - GenericResultAtLocation [Line: 489]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [855] - GenericResultAtLocation [Line: 958]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] - GenericResultAtLocation [Line: 967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [967] * 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: 963]: 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 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2265 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2238 mSDsluCounter, 4249 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3040 mSDsCounter, 670 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2943 IncrementalHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 670 mSolverCounterUnsat, 1209 mSDtfsCounter, 2943 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 805 GetRequests, 657 SyntacticMatches, 13 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=677occurred in iteration=11, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 207 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1014 NumberOfCodeBlocks, 1014 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1208 ConstructedInterpolants, 0 QuantifiedInterpolants, 2175 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1093 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 444/516 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: 65]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 64]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 252]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && (((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 159]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 882]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 392]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 135]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) && (\old(waterLevel) <= ((long long) waterLevel + 1))) || ((2 <= waterLevel) && (\old(waterLevel) <= ((long long) waterLevel + 1)))) && ((\old(pumpRunning) != 0) || ((1 == systemActive) && (\old(waterLevel) == waterLevel)))) && (((1 == systemActive) && (2 <= \old(waterLevel))) || ((\old(pumpRunning) == 0) && (1 <= \old(waterLevel))))) && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 167]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: (((((1 == systemActive) && (\old(pumpRunning) == 0)) && (1 <= waterLevel)) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 870]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((1 == systemActive) && ((\old(waterLevel) == 1) || (\old(waterLevel) == waterLevel))) && (1 <= \old(waterLevel))) && ((\old(waterLevel) != 1) || ((pumpRunning == 0) && (2 <= waterLevel)))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 193]: Procedure Contract for processEnvironment__wrappee__lowWaterSensor Derived contract for procedure processEnvironment__wrappee__lowWaterSensor. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((1 == systemActive) && (1 <= waterLevel)) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 16:53:30,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97069e2b-2fdb-4453-8897-3a40728ae4d4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE