./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya --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 f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:10:47,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:10:47,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:10:47,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:10:47,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:10:47,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:10:47,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:10:47,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:10:47,960 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:10:47,961 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:10:47,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:10:47,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:10:47,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:10:47,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:10:47,963 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:10:47,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:10:47,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:10:47,965 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:10:47,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:10:47,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:10:47,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:10:47,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:10:47,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:10:47,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:10:47,968 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:10:47,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:10:47,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:10:47,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:10:47,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:10:47,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:10:47,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:10:47,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:10:47,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:10:47,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:10:47,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:10:47,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:10:47,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:10:47,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:10:47,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:10:47,973 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:10:47,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:10:47,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:10:47,974 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_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 [2023-11-29 04:10:48,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:10:48,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:10:48,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:10:48,231 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:10:48,231 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:10:48,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2023-11-29 04:10:50,861 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:10:51,075 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:10:51,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2023-11-29 04:10:51,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/data/4553f3b0c/e72e1e3fa3504a5fa38c05a98363ff0e/FLAGf83a0c695 [2023-11-29 04:10:51,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/data/4553f3b0c/e72e1e3fa3504a5fa38c05a98363ff0e [2023-11-29 04:10:51,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:10:51,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:10:51,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:10:51,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:10:51,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:10:51,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d37cac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51, skipping insertion in model container [2023-11-29 04:10:51,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:10:51,686 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2023-11-29 04:10:51,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:10:51,702 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:10:51,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-29 04:10:51,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [135] [2023-11-29 04:10:51,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [163] [2023-11-29 04:10:51,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [236] [2023-11-29 04:10:51,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [387] [2023-11-29 04:10:51,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [425] [2023-11-29 04:10:51,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [521] [2023-11-29 04:10:51,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [887] [2023-11-29 04:10:51,770 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2023-11-29 04:10:51,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:10:51,789 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:10:51,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51 WrapperNode [2023-11-29 04:10:51,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:10:51,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:10:51,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:10:51,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:10:51,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,836 INFO L138 Inliner]: procedures = 52, calls = 93, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 143 [2023-11-29 04:10:51,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:10:51,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:10:51,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:10:51,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:10:51,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,865 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:10:51,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:10:51,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:10:51,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:10:51,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:10:51,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (1/1) ... [2023-11-29 04:10:51,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:10:51,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:51,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:10:51,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:10:51,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:10:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 04:10:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 04:10:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 04:10:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 04:10:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 04:10:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 04:10:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:10:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 04:10:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 04:10:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:10:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:10:52,030 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:10:52,032 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:10:52,198 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:10:52,257 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:10:52,257 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 04:10:52,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:10:52 BoogieIcfgContainer [2023-11-29 04:10:52,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:10:52,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:10:52,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:10:52,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:10:52,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:10:51" (1/3) ... [2023-11-29 04:10:52,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569c07df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:10:52, skipping insertion in model container [2023-11-29 04:10:52,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:10:51" (2/3) ... [2023-11-29 04:10:52,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569c07df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:10:52, skipping insertion in model container [2023-11-29 04:10:52,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:10:52" (3/3) ... [2023-11-29 04:10:52,267 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2023-11-29 04:10:52,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:10:52,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:10:52,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:10:52,324 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22c658c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:10:52,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:10:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 33 states have (on average 1.606060606060606) internal successors, (53), 37 states have internal predecessors, (53), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:10:52,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 04:10:52,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:52,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:52,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:10:52,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash -541410493, now seen corresponding path program 1 times [2023-11-29 04:10:52,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:52,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954149183] [2023-11-29 04:10:52,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:52,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:52,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954149183] [2023-11-29 04:10:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954149183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:52,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:52,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:10:52,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114964916] [2023-11-29 04:10:52,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:52,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:10:52,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:10:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:10:52,547 INFO L87 Difference]: Start difference. First operand has 45 states, 33 states have (on average 1.606060606060606) internal successors, (53), 37 states have internal predecessors, (53), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:52,602 INFO L93 Difference]: Finished difference Result 88 states and 131 transitions. [2023-11-29 04:10:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:10:52,604 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 04:10:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:52,612 INFO L225 Difference]: With dead ends: 88 [2023-11-29 04:10:52,612 INFO L226 Difference]: Without dead ends: 40 [2023-11-29 04:10:52,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:10:52,619 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:52,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-29 04:10:52,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-29 04:10:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 33 states have internal predecessors, (43), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 04:10:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-29 04:10:52,659 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 12 [2023-11-29 04:10:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:52,659 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-29 04:10:52,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-29 04:10:52,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 04:10:52,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:52,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:52,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:10:52,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:10:52,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:52,663 INFO L85 PathProgramCache]: Analyzing trace with hash 232316679, now seen corresponding path program 1 times [2023-11-29 04:10:52,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:52,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465833975] [2023-11-29 04:10:52,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:52,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:52,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465833975] [2023-11-29 04:10:52,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465833975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:52,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:52,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:10:52,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194428935] [2023-11-29 04:10:52,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:52,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:52,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:52,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:52,749 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:52,777 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2023-11-29 04:10:52,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:52,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-29 04:10:52,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:52,778 INFO L225 Difference]: With dead ends: 51 [2023-11-29 04:10:52,779 INFO L226 Difference]: Without dead ends: 32 [2023-11-29 04:10:52,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:52,781 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 14 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:52,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-29 04:10:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-29 04:10:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.48) internal successors, (37), 28 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 04:10:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2023-11-29 04:10:52,789 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 13 [2023-11-29 04:10:52,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:52,789 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2023-11-29 04:10:52,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:52,790 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2023-11-29 04:10:52,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 04:10:52,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:52,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:52,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:10:52,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:10:52,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:52,792 INFO L85 PathProgramCache]: Analyzing trace with hash 399724861, now seen corresponding path program 1 times [2023-11-29 04:10:52,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:52,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878598093] [2023-11-29 04:10:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:52,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:52,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878598093] [2023-11-29 04:10:52,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878598093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:52,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:52,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:10:52,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972301436] [2023-11-29 04:10:52,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:52,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:10:52,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:52,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:10:52,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:10:52,897 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:52,964 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2023-11-29 04:10:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:10:52,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-29 04:10:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:52,968 INFO L225 Difference]: With dead ends: 92 [2023-11-29 04:10:52,968 INFO L226 Difference]: Without dead ends: 62 [2023-11-29 04:10:52,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:10:52,970 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 67 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:52,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 81 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:52,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-29 04:10:52,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2023-11-29 04:10:52,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.488888888888889) internal successors, (67), 50 states have internal predecessors, (67), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 04:10:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2023-11-29 04:10:52,984 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 16 [2023-11-29 04:10:52,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:52,984 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-11-29 04:10:52,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2023-11-29 04:10:52,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 04:10:52,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:52,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:52,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:10:52,986 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:10:52,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash 525323717, now seen corresponding path program 1 times [2023-11-29 04:10:52,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:52,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121387133] [2023-11-29 04:10:52,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:52,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:53,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:53,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121387133] [2023-11-29 04:10:53,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121387133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:53,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:53,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:10:53,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919147297] [2023-11-29 04:10:53,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:53,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:10:53,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:53,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:10:53,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:10:53,140 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:53,243 INFO L93 Difference]: Finished difference Result 182 states and 274 transitions. [2023-11-29 04:10:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:10:53,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-29 04:10:53,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:53,247 INFO L225 Difference]: With dead ends: 182 [2023-11-29 04:10:53,247 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 04:10:53,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:10:53,249 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 54 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:53,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 122 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:53,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 04:10:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 106. [2023-11-29 04:10:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 92 states have internal predecessors, (121), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (17), 12 states have call predecessors, (17), 10 states have call successors, (17) [2023-11-29 04:10:53,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 148 transitions. [2023-11-29 04:10:53,274 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 148 transitions. Word has length 16 [2023-11-29 04:10:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:53,274 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 148 transitions. [2023-11-29 04:10:53,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:53,275 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 148 transitions. [2023-11-29 04:10:53,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 04:10:53,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:53,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:53,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:10:53,277 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:10:53,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:53,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1296094762, now seen corresponding path program 1 times [2023-11-29 04:10:53,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:53,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399690907] [2023-11-29 04:10:53,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:53,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:53,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:53,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399690907] [2023-11-29 04:10:53,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399690907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:53,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:53,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:10:53,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290771365] [2023-11-29 04:10:53,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:53,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:10:53,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:53,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:10:53,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:53,316 INFO L87 Difference]: Start difference. First operand 106 states and 148 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:53,343 INFO L93 Difference]: Finished difference Result 202 states and 288 transitions. [2023-11-29 04:10:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:10:53,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-29 04:10:53,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:53,346 INFO L225 Difference]: With dead ends: 202 [2023-11-29 04:10:53,346 INFO L226 Difference]: Without dead ends: 98 [2023-11-29 04:10:53,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:10:53,349 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:53,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 27 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:10:53,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-29 04:10:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-29 04:10:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 84 states have internal predecessors, (103), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2023-11-29 04:10:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 127 transitions. [2023-11-29 04:10:53,365 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 127 transitions. Word has length 18 [2023-11-29 04:10:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:53,366 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 127 transitions. [2023-11-29 04:10:53,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 127 transitions. [2023-11-29 04:10:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 04:10:53,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:53,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:53,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:10:53,368 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:10:53,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1031115755, now seen corresponding path program 1 times [2023-11-29 04:10:53,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:53,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210814389] [2023-11-29 04:10:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:53,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 04:10:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:53,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:53,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210814389] [2023-11-29 04:10:53,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210814389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:10:53,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:10:53,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:10:53,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981256594] [2023-11-29 04:10:53,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:10:53,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:10:53,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:53,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:10:53,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:10:53,503 INFO L87 Difference]: Start difference. First operand 98 states and 127 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:10:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:53,694 INFO L93 Difference]: Finished difference Result 288 states and 385 transitions. [2023-11-29 04:10:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:10:53,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 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 20 [2023-11-29 04:10:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:53,697 INFO L225 Difference]: With dead ends: 288 [2023-11-29 04:10:53,697 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 04:10:53,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:10:53,699 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 82 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:53,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 110 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:53,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 04:10:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 146. [2023-11-29 04:10:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 111 states have (on average 1.3513513513513513) internal successors, (150), 124 states have internal predecessors, (150), 16 states have call successors, (16), 16 states have call predecessors, (16), 18 states have return successors, (21), 16 states have call predecessors, (21), 16 states have call successors, (21) [2023-11-29 04:10:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 187 transitions. [2023-11-29 04:10:53,727 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 187 transitions. Word has length 20 [2023-11-29 04:10:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:53,727 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 187 transitions. [2023-11-29 04:10:53,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:10:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 187 transitions. [2023-11-29 04:10:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 04:10:53,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:10:53,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:53,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:10:53,730 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:10:53,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:10:53,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1233436706, now seen corresponding path program 1 times [2023-11-29 04:10:53,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:10:53,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326533854] [2023-11-29 04:10:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:53,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:10:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 04:10:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 04:10:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 04:10:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:10:53,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:53,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326533854] [2023-11-29 04:10:53,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326533854] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:53,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146637435] [2023-11-29 04:10:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:10:53,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:53,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:53,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:53,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:10:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:54,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:10:54,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:10:54,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:10:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:54,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146637435] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:10:54,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:10:54,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 13 [2023-11-29 04:10:54,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125779322] [2023-11-29 04:10:54,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:10:54,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:10:54,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:10:54,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:10:54,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:10:54,340 INFO L87 Difference]: Start difference. First operand 146 states and 187 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:10:54,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:10:54,519 INFO L93 Difference]: Finished difference Result 194 states and 251 transitions. [2023-11-29 04:10:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:10:54,521 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 38 [2023-11-29 04:10:54,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:10:54,521 INFO L225 Difference]: With dead ends: 194 [2023-11-29 04:10:54,521 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:10:54,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:10:54,523 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 93 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:10:54,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 182 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:10:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:10:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:10:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:10:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:10:54,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2023-11-29 04:10:54,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:10:54,525 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:10:54,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 04:10:54,525 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:10:54,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:10:54,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:10:54,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:10:54,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:54,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 04:10:55,073 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 82 93) the Hoare annotation is: true [2023-11-29 04:10:55,073 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2023-11-29 04:10:55,073 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2023-11-29 04:10:55,073 INFO L899 garLoopResultBuilder]: For program point L448(line 448) no Hoare annotation was computed. [2023-11-29 04:10:55,073 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 427 456) no Hoare annotation was computed. [2023-11-29 04:10:55,074 INFO L899 garLoopResultBuilder]: For program point L441(lines 441 445) no Hoare annotation was computed. [2023-11-29 04:10:55,074 INFO L902 garLoopResultBuilder]: At program point L441-1(lines 441 445) the Hoare annotation is: true [2023-11-29 04:10:55,074 INFO L902 garLoopResultBuilder]: At program point L437-2(lines 437 451) the Hoare annotation is: true [2023-11-29 04:10:55,074 INFO L902 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: true [2023-11-29 04:10:55,074 INFO L899 garLoopResultBuilder]: For program point L433-1(line 433) no Hoare annotation was computed. [2023-11-29 04:10:55,074 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 427 456) the Hoare annotation is: true [2023-11-29 04:10:55,074 INFO L899 garLoopResultBuilder]: For program point L452(lines 427 456) no Hoare annotation was computed. [2023-11-29 04:10:55,074 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2023-11-29 04:10:55,074 INFO L899 garLoopResultBuilder]: For program point L254-1(lines 254 260) no Hoare annotation was computed. [2023-11-29 04:10:55,075 INFO L899 garLoopResultBuilder]: For program point L62-2(lines 58 69) no Hoare annotation was computed. [2023-11-29 04:10:55,075 INFO L899 garLoopResultBuilder]: For program point L892(line 892) no Hoare annotation was computed. [2023-11-29 04:10:55,075 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 243 266) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2023-11-29 04:10:55,075 INFO L899 garLoopResultBuilder]: For program point L247-1(lines 246 265) no Hoare annotation was computed. [2023-11-29 04:10:55,075 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2023-11-29 04:10:55,076 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 159) no Hoare annotation was computed. [2023-11-29 04:10:55,076 INFO L899 garLoopResultBuilder]: For program point L146-1(lines 138 162) no Hoare annotation was computed. [2023-11-29 04:10:55,076 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 243 266) no Hoare annotation was computed. [2023-11-29 04:10:55,076 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 892) no Hoare annotation was computed. [2023-11-29 04:10:55,076 INFO L895 garLoopResultBuilder]: At program point L225(lines 178 227) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-29 04:10:55,076 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 194) no Hoare annotation was computed. [2023-11-29 04:10:55,077 INFO L899 garLoopResultBuilder]: For program point L188-1(lines 188 194) no Hoare annotation was computed. [2023-11-29 04:10:55,077 INFO L899 garLoopResultBuilder]: For program point L231(lines 168 235) no Hoare annotation was computed. [2023-11-29 04:10:55,077 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 204) no Hoare annotation was computed. [2023-11-29 04:10:55,077 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 198 204) no Hoare annotation was computed. [2023-11-29 04:10:55,111 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 04:10:55,112 INFO L895 garLoopResultBuilder]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-29 04:10:55,112 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 515) no Hoare annotation was computed. [2023-11-29 04:10:55,112 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 515) no Hoare annotation was computed. [2023-11-29 04:10:55,112 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 374) no Hoare annotation was computed. [2023-11-29 04:10:55,112 INFO L899 garLoopResultBuilder]: For program point L368-2(lines 368 374) no Hoare annotation was computed. [2023-11-29 04:10:55,112 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 04:10:55,113 INFO L895 garLoopResultBuilder]: At program point L228(lines 177 229) the Hoare annotation is: false [2023-11-29 04:10:55,113 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 222) no Hoare annotation was computed. [2023-11-29 04:10:55,113 INFO L895 garLoopResultBuilder]: At program point L216-2(lines 208 223) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-29 04:10:55,113 INFO L899 garLoopResultBuilder]: For program point L179(lines 178 227) no Hoare annotation was computed. [2023-11-29 04:10:55,113 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 223) no Hoare annotation was computed. [2023-11-29 04:10:55,113 INFO L895 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~3#1| 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2023-11-29 04:10:55,113 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2023-11-29 04:10:55,114 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 70 81) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2023-11-29 04:10:55,114 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2023-11-29 04:10:55,116 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:10:55,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:10:55,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:10:55 BoogieIcfgContainer [2023-11-29 04:10:55,135 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:10:55,136 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:10:55,136 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:10:55,136 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:10:55,136 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:10:52" (3/4) ... [2023-11-29 04:10:55,138 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:10:55,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-29 04:10:55,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-29 04:10:55,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-29 04:10:55,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-29 04:10:55,148 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-29 04:10:55,149 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 04:10:55,149 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 04:10:55,150 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:10:55,150 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:10:55,252 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:10:55,252 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:10:55,253 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:10:55,253 INFO L158 Benchmark]: Toolchain (without parser) took 3834.24ms. Allocated memory is still 176.2MB. Free memory was 146.8MB in the beginning and 136.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2023-11-29 04:10:55,254 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:10:55,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.44ms. Allocated memory is still 176.2MB. Free memory was 146.8MB in the beginning and 128.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:10:55,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.10ms. Allocated memory is still 176.2MB. Free memory was 128.3MB in the beginning and 126.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:10:55,255 INFO L158 Benchmark]: Boogie Preprocessor took 44.37ms. Allocated memory is still 176.2MB. Free memory was 126.2MB in the beginning and 123.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:10:55,255 INFO L158 Benchmark]: RCFGBuilder took 375.98ms. Allocated memory is still 176.2MB. Free memory was 123.9MB in the beginning and 129.4MB in the end (delta: -5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:10:55,256 INFO L158 Benchmark]: TraceAbstraction took 2874.98ms. Allocated memory is still 176.2MB. Free memory was 129.0MB in the beginning and 142.9MB in the end (delta: -14.0MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2023-11-29 04:10:55,256 INFO L158 Benchmark]: Witness Printer took 117.13ms. Allocated memory is still 176.2MB. Free memory was 142.9MB in the beginning and 136.6MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:10:55,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.44ms. Allocated memory is still 176.2MB. Free memory was 146.8MB in the beginning and 128.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.10ms. Allocated memory is still 176.2MB. Free memory was 128.3MB in the beginning and 126.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.37ms. Allocated memory is still 176.2MB. Free memory was 126.2MB in the beginning and 123.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.98ms. Allocated memory is still 176.2MB. Free memory was 123.9MB in the beginning and 129.4MB in the end (delta: -5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2874.98ms. Allocated memory is still 176.2MB. Free memory was 129.0MB in the beginning and 142.9MB in the end (delta: -14.0MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Witness Printer took 117.13ms. Allocated memory is still 176.2MB. Free memory was 142.9MB in the beginning and 136.6MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [135] - GenericResultAtLocation [Line: 163]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [163] - GenericResultAtLocation [Line: 236]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [236] - GenericResultAtLocation [Line: 387]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [387] - GenericResultAtLocation [Line: 425]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [425] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [521] - GenericResultAtLocation [Line: 887]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [887] * 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: 892]: 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 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 621 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 399 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 222 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=6, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 70 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 71 PreInvPairs, 87 NumberOfFragments, 162 HoareAnnotationTreeSize, 71 FomulaSimplifications, 570 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 412 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 551 SizeOfPredicates, 0 NumberOfNonLiveVariables, 181 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 28/48 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: 177]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0)) && (tmp == 1)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (tmp == 1)) && (waterLevel == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-29 04:10:55,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4509217a-6f0f-482b-99ee-cdd15bfdecc7/bin/uautomizer-verify-BQ2R08f2Ya/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