./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU --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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:55:24,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:55:24,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:55:24,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:55:24,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:55:24,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:55:24,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:55:24,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:55:24,637 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:55:24,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:55:24,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:55:24,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:55:24,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:55:24,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:55:24,643 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:55:24,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:55:24,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:55:24,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:55:24,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:55:24,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:55:24,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:55:24,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:55:24,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:55:24,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:55:24,652 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:55:24,652 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:55:24,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:55:24,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:55:24,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:55:24,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:55:24,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:55:24,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:55:24,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:55:24,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:55:24,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:55:24,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:55:24,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:55:24,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:55:24,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:55:24,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:55:24,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:55:24,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:55:24,657 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_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2024-10-31 21:55:24,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:55:25,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:55:25,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:55:25,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:55:25,025 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:55:25,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c Unable to find full path for "g++" [2024-10-31 21:55:27,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:55:27,341 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:55:27,342 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2024-10-31 21:55:27,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/data/15b570bb3/a254bed3f29d4d84951a43496a9b3196/FLAG1812f4373 [2024-10-31 21:55:27,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/data/15b570bb3/a254bed3f29d4d84951a43496a9b3196 [2024-10-31 21:55:27,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:55:27,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:55:27,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:27,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:55:27,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:55:27,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:27" (1/1) ... [2024-10-31 21:55:27,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2352729d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:27, skipping insertion in model container [2024-10-31 21:55:27,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:27" (1/1) ... [2024-10-31 21:55:27,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:55:28,021 WARN L251 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_2ac0935c-0a77-479e-9870-73cde4caf850/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2024-10-31 21:55:28,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:28,181 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:55:28,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-31 21:55:28,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-10-31 21:55:28,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] [2024-10-31 21:55:28,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] [2024-10-31 21:55:28,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] [2024-10-31 21:55:28,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] [2024-10-31 21:55:28,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] [2024-10-31 21:55:28,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] [2024-10-31 21:55:28,211 WARN L251 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_2ac0935c-0a77-479e-9870-73cde4caf850/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2024-10-31 21:55:28,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:28,317 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:55:28,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28 WrapperNode [2024-10-31 21:55:28,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:28,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:55:28,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:55:28,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,397 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 215 [2024-10-31 21:55:28,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:55:28,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:55:28,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:55:28,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,449 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]. [2024-10-31 21:55:28,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:55:28,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:55:28,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:55:28,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:55:28,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:55:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:28,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:28,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:55:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:55:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-31 21:55:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-31 21:55:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 21:55:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 21:55:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 21:55:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 21:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-31 21:55:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-31 21:55:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 21:55:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 21:55:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-31 21:55:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-31 21:55:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 21:55:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-31 21:55:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-31 21:55:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-31 21:55:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-31 21:55:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-31 21:55:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:55:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-31 21:55:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-31 21:55:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:55:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:55:28,772 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:55:28,776 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:55:29,348 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-31 21:55:29,348 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:55:29,366 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:55:29,367 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 21:55:29,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:29 BoogieIcfgContainer [2024-10-31 21:55:29,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:55:29,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:55:29,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:55:29,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:55:29,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:55:27" (1/3) ... [2024-10-31 21:55:29,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c584d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:55:29, skipping insertion in model container [2024-10-31 21:55:29,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (2/3) ... [2024-10-31 21:55:29,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c584d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:55:29, skipping insertion in model container [2024-10-31 21:55:29,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:29" (3/3) ... [2024-10-31 21:55:29,380 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2024-10-31 21:55:29,403 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:55:29,403 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:55:29,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:55:29,501 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;@32ab35da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:55:29,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:55:29,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 21:55:29,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-31 21:55:29,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:29,519 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] [2024-10-31 21:55:29,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:29,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1854857434, now seen corresponding path program 1 times [2024-10-31 21:55:29,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098796046] [2024-10-31 21:55:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:29,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:55:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:29,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098796046] [2024-10-31 21:55:29,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098796046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:29,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:29,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741290320] [2024-10-31 21:55:29,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:29,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:55:29,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:55:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:55:29,832 INFO L87 Difference]: Start difference. First operand has 108 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:29,877 INFO L93 Difference]: Finished difference Result 208 states and 281 transitions. [2024-10-31 21:55:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:55:29,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-10-31 21:55:29,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:29,889 INFO L225 Difference]: With dead ends: 208 [2024-10-31 21:55:29,889 INFO L226 Difference]: Without dead ends: 99 [2024-10-31 21:55:29,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:55:29,898 INFO L432 NwaCegarLoop]: 137 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, 137 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 [2024-10-31 21:55:29,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:29,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-31 21:55:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-10-31 21:55:29,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 21:55:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2024-10-31 21:55:29,952 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 23 [2024-10-31 21:55:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:29,952 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2024-10-31 21:55:29,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2024-10-31 21:55:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-31 21:55:29,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:29,956 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] [2024-10-31 21:55:29,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:55:29,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:29,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1310134844, now seen corresponding path program 1 times [2024-10-31 21:55:29,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738270955] [2024-10-31 21:55:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:55:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738270955] [2024-10-31 21:55:30,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738270955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:55:30,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735731102] [2024-10-31 21:55:30,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:30,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:30,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:30,098 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:30,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:30,125 INFO L93 Difference]: Finished difference Result 164 states and 212 transitions. [2024-10-31 21:55:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:30,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-31 21:55:30,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:30,128 INFO L225 Difference]: With dead ends: 164 [2024-10-31 21:55:30,128 INFO L226 Difference]: Without dead ends: 90 [2024-10-31 21:55:30,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:30,131 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 12 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 214 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 [2024-10-31 21:55:30,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:30,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-31 21:55:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-31 21:55:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 21:55:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2024-10-31 21:55:30,153 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 24 [2024-10-31 21:55:30,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:30,154 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2024-10-31 21:55:30,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2024-10-31 21:55:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 21:55:30,159 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:30,160 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] [2024-10-31 21:55:30,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:55:30,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:30,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2011182624, now seen corresponding path program 1 times [2024-10-31 21:55:30,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027260255] [2024-10-31 21:55:30,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:55:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027260255] [2024-10-31 21:55:30,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027260255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:55:30,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949079012] [2024-10-31 21:55:30,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:55:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:30,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:30,334 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:30,366 INFO L93 Difference]: Finished difference Result 173 states and 226 transitions. [2024-10-31 21:55:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:30,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-10-31 21:55:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:30,372 INFO L225 Difference]: With dead ends: 173 [2024-10-31 21:55:30,373 INFO L226 Difference]: Without dead ends: 90 [2024-10-31 21:55:30,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:30,380 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 98 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 114 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 [2024-10-31 21:55:30,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:55:30,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-31 21:55:30,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-31 21:55:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-31 21:55:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2024-10-31 21:55:30,412 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 115 transitions. Word has length 28 [2024-10-31 21:55:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:30,412 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 115 transitions. [2024-10-31 21:55:30,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:55:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2024-10-31 21:55:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 21:55:30,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:30,418 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] [2024-10-31 21:55:30,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:55:30,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:30,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1454995953, now seen corresponding path program 1 times [2024-10-31 21:55:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254016394] [2024-10-31 21:55:30,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:55:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 21:55:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:30,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254016394] [2024-10-31 21:55:30,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254016394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:30,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:30,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:55:30,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246505379] [2024-10-31 21:55:30,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:30,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:30,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:30,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:30,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:30,719 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 21:55:31,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:31,213 INFO L93 Difference]: Finished difference Result 258 states and 327 transitions. [2024-10-31 21:55:31,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:55:31,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-10-31 21:55:31,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:31,217 INFO L225 Difference]: With dead ends: 258 [2024-10-31 21:55:31,220 INFO L226 Difference]: Without dead ends: 175 [2024-10-31 21:55:31,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:55:31,223 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 213 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:31,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 288 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:55:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-31 21:55:31,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2024-10-31 21:55:31,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2357723577235773) internal successors, (152), 132 states have internal predecessors, (152), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-10-31 21:55:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2024-10-31 21:55:31,270 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 43 [2024-10-31 21:55:31,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:31,271 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2024-10-31 21:55:31,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 21:55:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2024-10-31 21:55:31,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-31 21:55:31,273 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:31,274 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, 1] [2024-10-31 21:55:31,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:55:31,274 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:31,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,275 INFO L85 PathProgramCache]: Analyzing trace with hash 541296903, now seen corresponding path program 1 times [2024-10-31 21:55:31,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972354578] [2024-10-31 21:55:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:55:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:55:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 21:55:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:31,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972354578] [2024-10-31 21:55:31,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972354578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:31,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:31,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:55:31,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464804709] [2024-10-31 21:55:31,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:31,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:55:31,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:31,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:55:31,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:55:31,540 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 21:55:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:31,990 INFO L93 Difference]: Finished difference Result 173 states and 205 transitions. [2024-10-31 21:55:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:55:31,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-10-31 21:55:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:31,993 INFO L225 Difference]: With dead ends: 173 [2024-10-31 21:55:31,993 INFO L226 Difference]: Without dead ends: 171 [2024-10-31 21:55:31,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:55:31,998 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 150 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:31,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 363 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:55:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-31 21:55:32,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2024-10-31 21:55:32,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 132 states have internal predecessors, (150), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-10-31 21:55:32,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2024-10-31 21:55:32,045 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 49 [2024-10-31 21:55:32,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:32,045 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2024-10-31 21:55:32,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 21:55:32,046 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2024-10-31 21:55:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-31 21:55:32,050 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:32,051 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:32,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:55:32,051 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:32,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash -543497229, now seen corresponding path program 1 times [2024-10-31 21:55:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296747735] [2024-10-31 21:55:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:55:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:55:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 21:55:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:55:32,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296747735] [2024-10-31 21:55:32,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296747735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:55:32,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791899460] [2024-10-31 21:55:32,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:55:32,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:55:32,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:55:32,331 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:55:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:32,632 INFO L93 Difference]: Finished difference Result 336 states and 408 transitions. [2024-10-31 21:55:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:55:32,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-10-31 21:55:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:32,635 INFO L225 Difference]: With dead ends: 336 [2024-10-31 21:55:32,635 INFO L226 Difference]: Without dead ends: 174 [2024-10-31 21:55:32,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:55:32,639 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 65 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:32,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 386 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:55:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-31 21:55:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2024-10-31 21:55:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 135 states have internal predecessors, (153), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-10-31 21:55:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2024-10-31 21:55:32,674 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 59 [2024-10-31 21:55:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:32,674 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2024-10-31 21:55:32,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:55:32,675 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2024-10-31 21:55:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-31 21:55:32,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:32,678 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:32,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:55:32,678 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:32,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,679 INFO L85 PathProgramCache]: Analyzing trace with hash -268737615, now seen corresponding path program 1 times [2024-10-31 21:55:32,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:32,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784795312] [2024-10-31 21:55:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:32,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:55:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:55:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 21:55:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:55:32,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:32,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784795312] [2024-10-31 21:55:32,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784795312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:32,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:32,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:55:32,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533257875] [2024-10-31 21:55:32,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:32,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:55:32,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:32,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:55:32,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:55:32,911 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:55:33,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:33,246 INFO L93 Difference]: Finished difference Result 341 states and 413 transitions. [2024-10-31 21:55:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:55:33,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-10-31 21:55:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:33,249 INFO L225 Difference]: With dead ends: 341 [2024-10-31 21:55:33,249 INFO L226 Difference]: Without dead ends: 176 [2024-10-31 21:55:33,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:55:33,255 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 148 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:33,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 292 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:55:33,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-10-31 21:55:33,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2024-10-31 21:55:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2109375) internal successors, (155), 137 states have internal predecessors, (155), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-10-31 21:55:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2024-10-31 21:55:33,293 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 59 [2024-10-31 21:55:33,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:33,294 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2024-10-31 21:55:33,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 21:55:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2024-10-31 21:55:33,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-31 21:55:33,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:33,301 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:33,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:55:33,302 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:33,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:33,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1782246383, now seen corresponding path program 1 times [2024-10-31 21:55:33,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:33,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449094139] [2024-10-31 21:55:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:33,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:55:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:55:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 21:55:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:55:33,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:33,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449094139] [2024-10-31 21:55:33,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449094139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:33,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:33,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:55:33,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485240745] [2024-10-31 21:55:33,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:33,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:55:33,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:55:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:55:33,471 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-31 21:55:33,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:33,867 INFO L93 Difference]: Finished difference Result 465 states and 581 transitions. [2024-10-31 21:55:33,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:55:33,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2024-10-31 21:55:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:33,870 INFO L225 Difference]: With dead ends: 465 [2024-10-31 21:55:33,870 INFO L226 Difference]: Without dead ends: 298 [2024-10-31 21:55:33,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:55:33,872 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 220 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:33,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 312 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:55:33,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-10-31 21:55:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2024-10-31 21:55:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 218 states have (on average 1.2064220183486238) internal successors, (263), 231 states have internal predecessors, (263), 39 states have call successors, (39), 35 states have call predecessors, (39), 38 states have return successors, (58), 40 states have call predecessors, (58), 39 states have call successors, (58) [2024-10-31 21:55:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 360 transitions. [2024-10-31 21:55:33,914 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 360 transitions. Word has length 59 [2024-10-31 21:55:33,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:33,914 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 360 transitions. [2024-10-31 21:55:33,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-31 21:55:33,915 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 360 transitions. [2024-10-31 21:55:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 21:55:33,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:33,916 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:33,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:55:33,917 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:33,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1601702199, now seen corresponding path program 1 times [2024-10-31 21:55:33,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:33,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039524304] [2024-10-31 21:55:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:33,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:55:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:55:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:55:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-31 21:55:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 21:55:34,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:34,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039524304] [2024-10-31 21:55:34,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039524304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:34,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:34,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-31 21:55:34,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264504659] [2024-10-31 21:55:34,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:34,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 21:55:34,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:34,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 21:55:34,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:55:34,297 INFO L87 Difference]: Start difference. First operand 296 states and 360 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 21:55:35,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:35,498 INFO L93 Difference]: Finished difference Result 893 states and 1128 transitions. [2024-10-31 21:55:35,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-31 21:55:35,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-10-31 21:55:35,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:35,505 INFO L225 Difference]: With dead ends: 893 [2024-10-31 21:55:35,506 INFO L226 Difference]: Without dead ends: 604 [2024-10-31 21:55:35,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-10-31 21:55:35,510 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 455 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:35,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 425 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 21:55:35,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-10-31 21:55:35,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 602. [2024-10-31 21:55:35,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 437 states have (on average 1.1807780320366132) internal successors, (516), 467 states have internal predecessors, (516), 86 states have call successors, (86), 68 states have call predecessors, (86), 78 states have return successors, (135), 86 states have call predecessors, (135), 86 states have call successors, (135) [2024-10-31 21:55:35,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 737 transitions. [2024-10-31 21:55:35,600 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 737 transitions. Word has length 63 [2024-10-31 21:55:35,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:35,601 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 737 transitions. [2024-10-31 21:55:35,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 21:55:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 737 transitions. [2024-10-31 21:55:35,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-31 21:55:35,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:35,606 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:35,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 21:55:35,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:35,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:35,609 INFO L85 PathProgramCache]: Analyzing trace with hash -991857476, now seen corresponding path program 1 times [2024-10-31 21:55:35,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:35,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160610536] [2024-10-31 21:55:35,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:35,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:55:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 21:55:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 21:55:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:55:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:55:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 21:55:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 21:55:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-31 21:55:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-31 21:55:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:55:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-31 21:55:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-31 21:55:36,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160610536] [2024-10-31 21:55:36,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160610536] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496958701] [2024-10-31 21:55:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:36,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:36,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:36,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:36,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:55:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:55:36,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:55:36,713 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:55:36,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496958701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:36,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:55:36,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 23 [2024-10-31 21:55:36,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745455838] [2024-10-31 21:55:36,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:36,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:55:36,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:36,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:55:36,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2024-10-31 21:55:36,717 INFO L87 Difference]: Start difference. First operand 602 states and 737 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:55:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:37,041 INFO L93 Difference]: Finished difference Result 1197 states and 1467 transitions. [2024-10-31 21:55:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:55:37,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2024-10-31 21:55:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:37,047 INFO L225 Difference]: With dead ends: 1197 [2024-10-31 21:55:37,048 INFO L226 Difference]: Without dead ends: 602 [2024-10-31 21:55:37,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2024-10-31 21:55:37,051 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 72 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:37,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1173 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:55:37,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-10-31 21:55:37,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2024-10-31 21:55:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 437 states have (on average 1.1670480549199085) internal successors, (510), 467 states have internal predecessors, (510), 86 states have call successors, (86), 68 states have call predecessors, (86), 78 states have return successors, (122), 86 states have call predecessors, (122), 86 states have call successors, (122) [2024-10-31 21:55:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 718 transitions. [2024-10-31 21:55:37,120 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 718 transitions. Word has length 125 [2024-10-31 21:55:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:37,120 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 718 transitions. [2024-10-31 21:55:37,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:55:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 718 transitions. [2024-10-31 21:55:37,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-31 21:55:37,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:55:37,124 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:37,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:37,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 21:55:37,329 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:55:37,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:37,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1570194048, now seen corresponding path program 1 times [2024-10-31 21:55:37,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:37,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980971986] [2024-10-31 21:55:37,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:37,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 21:55:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 21:55:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:55:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 21:55:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 21:55:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-31 21:55:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-31 21:55:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 21:55:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-31 21:55:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 21:55:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 21:55:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-31 21:55:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,796 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 21:55:37,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:37,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980971986] [2024-10-31 21:55:37,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980971986] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:37,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358932621] [2024-10-31 21:55:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:37,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:37,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:37,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:37,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:55:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:55:37,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 21:55:38,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:55:38,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358932621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:38,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:55:38,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-10-31 21:55:38,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362699440] [2024-10-31 21:55:38,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:38,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:55:38,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:38,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:55:38,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-31 21:55:38,142 INFO L87 Difference]: Start difference. First operand 602 states and 718 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:55:38,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:38,363 INFO L93 Difference]: Finished difference Result 1027 states and 1241 transitions. [2024-10-31 21:55:38,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:55:38,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-10-31 21:55:38,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:55:38,368 INFO L225 Difference]: With dead ends: 1027 [2024-10-31 21:55:38,368 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 21:55:38,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-10-31 21:55:38,372 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 63 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:55:38,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1038 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:55:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 21:55:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 21:55:38,373 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) [2024-10-31 21:55:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 21:55:38,374 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2024-10-31 21:55:38,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:55:38,375 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 21:55:38,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-31 21:55:38,375 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 21:55:38,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 21:55:38,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 21:55:38,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:38,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 21:55:38,585 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:38,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 21:55:42,717 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:55:42,740 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1)))) Eliminated clause: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2024-10-31 21:55:42,759 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-10-31 21:55:42,763 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-31 21:55:42,766 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-31 21:55:42,779 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 21:55:42,785 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 21:55:42,790 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-31 21:55:42,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:55:42 BoogieIcfgContainer [2024-10-31 21:55:42,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:55:42,818 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:55:42,818 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:55:42,818 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:55:42,819 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:29" (3/4) ... [2024-10-31 21:55:42,821 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:55:42,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-31 21:55:42,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-31 21:55:42,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-31 21:55:42,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-31 21:55:42,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-31 21:55:42,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-31 21:55:42,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-31 21:55:42,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-31 21:55:42,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-31 21:55:42,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-31 21:55:42,834 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-31 21:55:42,834 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-31 21:55:42,835 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 21:55:42,835 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:55:42,835 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:55:43,034 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:55:43,035 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:55:43,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:55:43,036 INFO L158 Benchmark]: Toolchain (without parser) took 15363.78ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 109.7MB in the beginning and 174.6MB in the end (delta: -64.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-10-31 21:55:43,036 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:55:43,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.63ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 87.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 21:55:43,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.18ms. Allocated memory is still 148.9MB. Free memory was 87.7MB in the beginning and 85.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:43,037 INFO L158 Benchmark]: Boogie Preprocessor took 89.31ms. Allocated memory is still 148.9MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:43,042 INFO L158 Benchmark]: RCFGBuilder took 879.67ms. Allocated memory is still 148.9MB. Free memory was 82.6MB in the beginning and 113.7MB in the end (delta: -31.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-10-31 21:55:43,043 INFO L158 Benchmark]: TraceAbstraction took 13447.49ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 113.0MB in the beginning and 183.0MB in the end (delta: -70.0MB). Peak memory consumption was 124.2MB. Max. memory is 16.1GB. [2024-10-31 21:55:43,043 INFO L158 Benchmark]: Witness Printer took 217.18ms. Allocated memory is still 218.1MB. Free memory was 183.0MB in the beginning and 174.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 21:55:43,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.63ms. Allocated memory is still 148.9MB. Free memory was 109.2MB in the beginning and 87.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.18ms. Allocated memory is still 148.9MB. Free memory was 87.7MB in the beginning and 85.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.31ms. Allocated memory is still 148.9MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 879.67ms. Allocated memory is still 148.9MB. Free memory was 82.6MB in the beginning and 113.7MB in the end (delta: -31.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13447.49ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 113.0MB in the beginning and 183.0MB in the end (delta: -70.0MB). Peak memory consumption was 124.2MB. Max. memory is 16.1GB. * Witness Printer took 217.18ms. Allocated memory is still 218.1MB. Free memory was 183.0MB in the beginning and 174.6MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] - GenericResultAtLocation [Line: 207]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] - GenericResultAtLocation [Line: 234]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] - GenericResultAtLocation [Line: 640]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 203]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1535 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1496 mSDsluCounter, 4742 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3404 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1819 IncrementalHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 1338 mSDtfsCounter, 1819 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 482 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=602occurred in iteration=9, InterpolantAutomatonStates: 84, 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, 11 MinimizatonAttempts, 16 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 899 NumberOfCodeBlocks, 899 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 886 ConstructedInterpolants, 0 QuantifiedInterpolants, 1633 SizeOfPredicates, 1 NumberOfNonLiveVariables, 744 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 185/212 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: 247]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 473]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: (((pumpRunning == 0) && ((((\old(pumpRunning) != 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((\old(pumpRunning) != 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 363]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 122]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((waterLevel == \old(waterLevel)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 339]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || ((pumpRunning == \old(pumpRunning)) && (\old(pumpRunning) != 0))) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || ((2 <= waterLevel) && (\old(waterLevel) == waterLevel))) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && ((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || (methaneLevelCritical < 1))) && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 237]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 134]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) && (\result == methaneLevelCritical)) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 371]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) == 0))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 110]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (((((methaneLevelCritical == \old(methaneLevelCritical)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 397]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) == 0))) && (((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 481]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: ((((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) && (\result == methaneLevelCritical)) && ((((((waterLevel == \old(waterLevel)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-10-31 21:55:43,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac0935c-0a77-479e-9870-73cde4caf850/bin/uautomizer-verify-4GaUIPS5ZU/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