./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.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_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/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_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/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_a3d819aa-5347-44c3-a84e-9760a5067c1a/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 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:27:33,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:27:33,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:27:33,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:27:33,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:27:33,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:27:33,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:27:33,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:27:33,774 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:27:33,774 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:27:33,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:27:33,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:27:33,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:27:33,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:27:33,777 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:27:33,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:27:33,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:27:33,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:27:33,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:27:33,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:27:33,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:27:33,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:27:33,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:27:33,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:27:33,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:27:33,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:27:33,783 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:27:33,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:27:33,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:27:33,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:27:33,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:27:33,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:27:33,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:27:33,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:27:33,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:27:33,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:27:33,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:27:33,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:27:33,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:27:33,787 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:27:33,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:27:33,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:27:33,788 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_a3d819aa-5347-44c3-a84e-9760a5067c1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e [2023-11-29 01:27:34,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:27:34,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:27:34,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:27:34,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:27:34,038 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:27:34,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2023-11-29 01:27:36,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:27:36,958 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:27:36,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2023-11-29 01:27:36,973 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/data/a75e42a33/9f1d90a4e8874617913f207aa65f0ddd/FLAG3beaf1687 [2023-11-29 01:27:36,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/data/a75e42a33/9f1d90a4e8874617913f207aa65f0ddd [2023-11-29 01:27:36,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:27:36,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:27:36,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:27:36,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:27:36,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:27:36,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:27:36" (1/1) ... [2023-11-29 01:27:36,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1497753e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:36, skipping insertion in model container [2023-11-29 01:27:36,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:27:36" (1/1) ... [2023-11-29 01:27:37,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:27:37,303 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_a3d819aa-5347-44c3-a84e-9760a5067c1a/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2023-11-29 01:27:37,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:27:37,320 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:27:37,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2023-11-29 01:27:37,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] [2023-11-29 01:27:37,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [125] [2023-11-29 01:27:37,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [491] [2023-11-29 01:27:37,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] [2023-11-29 01:27:37,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [689] [2023-11-29 01:27:37,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] [2023-11-29 01:27:37,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [962] [2023-11-29 01:27:37,392 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_a3d819aa-5347-44c3-a84e-9760a5067c1a/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2023-11-29 01:27:37,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:27:37,411 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:27:37,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37 WrapperNode [2023-11-29 01:27:37,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:27:37,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:27:37,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:27:37,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:27:37,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,453 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 200 [2023-11-29 01:27:37,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:27:37,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:27:37,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:27:37,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:27:37,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,479 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 01:27:37,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:27:37,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:27:37,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:27:37,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:27:37,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (1/1) ... [2023-11-29 01:27:37,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:27:37,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:27:37,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:27:37,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:27:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:27:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 01:27:37,552 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 01:27:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 01:27:37,552 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 01:27:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 01:27:37,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 01:27:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-29 01:27:37,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-29 01:27:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 01:27:37,553 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 01:27:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:27:37,553 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:27:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-29 01:27:37,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-29 01:27:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:27:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 01:27:37,553 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 01:27:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:27:37,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:27:37,627 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:27:37,630 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:27:37,889 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:27:37,949 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:27:37,949 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:27:37,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:27:37 BoogieIcfgContainer [2023-11-29 01:27:37,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:27:37,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:27:37,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:27:37,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:27:37,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:27:36" (1/3) ... [2023-11-29 01:27:37,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74747e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:27:37, skipping insertion in model container [2023-11-29 01:27:37,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:27:37" (2/3) ... [2023-11-29 01:27:37,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74747e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:27:37, skipping insertion in model container [2023-11-29 01:27:37,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:27:37" (3/3) ... [2023-11-29 01:27:37,960 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2023-11-29 01:27:37,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:27:37,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:27:38,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:27:38,022 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;@1e5fec01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:27:38,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:27:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 60 states have internal predecessors, (79), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:27:38,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:27:38,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:38,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:38,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:38,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:38,040 INFO L85 PathProgramCache]: Analyzing trace with hash -81999668, now seen corresponding path program 1 times [2023-11-29 01:27:38,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:38,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357424414] [2023-11-29 01:27:38,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:38,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:27:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,199 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 01:27:38,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:38,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357424414] [2023-11-29 01:27:38,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357424414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:38,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:38,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:27:38,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523320520] [2023-11-29 01:27:38,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:38,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:27:38,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:38,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:27:38,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:27:38,236 INFO L87 Difference]: Start difference. First operand has 76 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 60 states have internal predecessors, (79), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:27:38,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:38,294 INFO L93 Difference]: Finished difference Result 150 states and 215 transitions. [2023-11-29 01:27:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:27:38,297 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-29 01:27:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:38,305 INFO L225 Difference]: With dead ends: 150 [2023-11-29 01:27:38,305 INFO L226 Difference]: Without dead ends: 71 [2023-11-29 01:27:38,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:27:38,312 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 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 01:27:38,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:27:38,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-29 01:27:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-29 01:27:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 56 states have internal predecessors, (69), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 01:27:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 96 transitions. [2023-11-29 01:27:38,351 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 96 transitions. Word has length 17 [2023-11-29 01:27:38,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:38,351 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 96 transitions. [2023-11-29 01:27:38,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:27:38,352 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 96 transitions. [2023-11-29 01:27:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 01:27:38,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:38,354 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 01:27:38,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:27:38,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:38,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1912076336, now seen corresponding path program 1 times [2023-11-29 01:27:38,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:38,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084709804] [2023-11-29 01:27:38,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:38,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:27:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,454 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 01:27:38,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:38,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084709804] [2023-11-29 01:27:38,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084709804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:38,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:38,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:27:38,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929136123] [2023-11-29 01:27:38,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:38,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:27:38,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:38,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:27:38,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:27:38,459 INFO L87 Difference]: Start difference. First operand 71 states and 96 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:27:38,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:38,497 INFO L93 Difference]: Finished difference Result 115 states and 155 transitions. [2023-11-29 01:27:38,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:27:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-29 01:27:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:38,500 INFO L225 Difference]: With dead ends: 115 [2023-11-29 01:27:38,500 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 01:27:38,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:27:38,503 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 11 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:38,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 133 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:27:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 01:27:38,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-29 01:27:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 01:27:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2023-11-29 01:27:38,515 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 18 [2023-11-29 01:27:38,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:38,515 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2023-11-29 01:27:38,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:27:38,516 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2023-11-29 01:27:38,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 01:27:38,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:38,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:38,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:27:38,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:38,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:38,518 INFO L85 PathProgramCache]: Analyzing trace with hash 602386381, now seen corresponding path program 1 times [2023-11-29 01:27:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:38,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182364779] [2023-11-29 01:27:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:38,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:27:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,628 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 01:27:38,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:38,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182364779] [2023-11-29 01:27:38,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182364779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:38,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:38,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:27:38,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710819423] [2023-11-29 01:27:38,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:38,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:27:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:38,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:27:38,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:27:38,631 INFO L87 Difference]: Start difference. First operand 63 states and 85 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:27:38,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:38,699 INFO L93 Difference]: Finished difference Result 124 states and 169 transitions. [2023-11-29 01:27:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:27:38,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-29 01:27:38,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:38,702 INFO L225 Difference]: With dead ends: 124 [2023-11-29 01:27:38,702 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 01:27:38,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 01:27:38,705 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 91 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:38,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 126 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:27:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 01:27:38,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-29 01:27:38,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 51 states have internal predecessors, (62), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 01:27:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 84 transitions. [2023-11-29 01:27:38,719 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 84 transitions. Word has length 21 [2023-11-29 01:27:38,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:38,719 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 84 transitions. [2023-11-29 01:27:38,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:27:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 84 transitions. [2023-11-29 01:27:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:27:38,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:38,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:38,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:27:38,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:38,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:38,723 INFO L85 PathProgramCache]: Analyzing trace with hash 799796253, now seen corresponding path program 1 times [2023-11-29 01:27:38,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:38,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38519253] [2023-11-29 01:27:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:38,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:27:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:27:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-29 01:27:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:38,834 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 01:27:38,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:38,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38519253] [2023-11-29 01:27:38,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38519253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:38,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:38,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:27:38,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513381474] [2023-11-29 01:27:38,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:38,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:27:38,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:27:38,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:27:38,837 INFO L87 Difference]: Start difference. First operand 63 states and 84 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:27:39,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:39,075 INFO L93 Difference]: Finished difference Result 194 states and 256 transitions. [2023-11-29 01:27:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:27:39,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2023-11-29 01:27:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:39,078 INFO L225 Difference]: With dead ends: 194 [2023-11-29 01:27:39,078 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 01:27:39,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:27:39,081 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 166 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:39,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 188 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:27:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 01:27:39,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 127. [2023-11-29 01:27:39,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 98 states have internal predecessors, (121), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-29 01:27:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 162 transitions. [2023-11-29 01:27:39,103 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 162 transitions. Word has length 31 [2023-11-29 01:27:39,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:39,104 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 162 transitions. [2023-11-29 01:27:39,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:27:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 162 transitions. [2023-11-29 01:27:39,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 01:27:39,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:39,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:39,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:27:39,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:39,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash 632487616, now seen corresponding path program 1 times [2023-11-29 01:27:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:39,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768624742] [2023-11-29 01:27:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:39,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:27:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 01:27:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,198 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 01:27:39,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:39,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768624742] [2023-11-29 01:27:39,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768624742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:39,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:39,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:27:39,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251182898] [2023-11-29 01:27:39,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:39,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:27:39,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:39,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:27:39,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:27:39,201 INFO L87 Difference]: Start difference. First operand 127 states and 162 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:27:39,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:39,458 INFO L93 Difference]: Finished difference Result 373 states and 500 transitions. [2023-11-29 01:27:39,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:27:39,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-29 01:27:39,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:39,462 INFO L225 Difference]: With dead ends: 373 [2023-11-29 01:27:39,463 INFO L226 Difference]: Without dead ends: 248 [2023-11-29 01:27:39,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:27:39,465 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 137 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:39,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 170 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:27:39,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-29 01:27:39,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 242. [2023-11-29 01:27:39,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 171 states have (on average 1.2982456140350878) internal successors, (222), 184 states have internal predecessors, (222), 36 states have call successors, (36), 30 states have call predecessors, (36), 34 states have return successors, (54), 36 states have call predecessors, (54), 36 states have call successors, (54) [2023-11-29 01:27:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 312 transitions. [2023-11-29 01:27:39,512 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 312 transitions. Word has length 36 [2023-11-29 01:27:39,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:39,513 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 312 transitions. [2023-11-29 01:27:39,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:27:39,513 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 312 transitions. [2023-11-29 01:27:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 01:27:39,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:39,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:39,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:27:39,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:39,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1452839140, now seen corresponding path program 1 times [2023-11-29 01:27:39,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:39,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543337192] [2023-11-29 01:27:39,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:39,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:27:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:27:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 01:27:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:39,597 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 01:27:39,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:39,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543337192] [2023-11-29 01:27:39,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543337192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:39,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:39,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:27:39,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690910060] [2023-11-29 01:27:39,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:39,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:27:39,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:39,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:27:39,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:27:39,600 INFO L87 Difference]: Start difference. First operand 242 states and 312 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:27:39,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:39,902 INFO L93 Difference]: Finished difference Result 516 states and 666 transitions. [2023-11-29 01:27:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:27:39,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-29 01:27:39,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:39,906 INFO L225 Difference]: With dead ends: 516 [2023-11-29 01:27:39,906 INFO L226 Difference]: Without dead ends: 276 [2023-11-29 01:27:39,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:27:39,908 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 122 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:39,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 169 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:27:39,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-11-29 01:27:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 269. [2023-11-29 01:27:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 190 states have (on average 1.2789473684210526) internal successors, (243), 207 states have internal predecessors, (243), 40 states have call successors, (40), 30 states have call predecessors, (40), 38 states have return successors, (62), 40 states have call predecessors, (62), 40 states have call successors, (62) [2023-11-29 01:27:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 345 transitions. [2023-11-29 01:27:39,945 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 345 transitions. Word has length 40 [2023-11-29 01:27:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:39,945 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 345 transitions. [2023-11-29 01:27:39,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:27:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 345 transitions. [2023-11-29 01:27:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 01:27:39,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:39,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:39,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:27:39,948 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:39,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:39,948 INFO L85 PathProgramCache]: Analyzing trace with hash -541305566, now seen corresponding path program 1 times [2023-11-29 01:27:39,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:39,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150652789] [2023-11-29 01:27:39,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:39,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:27:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:27:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 01:27:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,036 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 01:27:40,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:40,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150652789] [2023-11-29 01:27:40,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150652789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:40,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:40,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:27:40,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069391866] [2023-11-29 01:27:40,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:40,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:27:40,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:40,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:27:40,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:27:40,039 INFO L87 Difference]: Start difference. First operand 269 states and 345 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:27:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:40,326 INFO L93 Difference]: Finished difference Result 550 states and 713 transitions. [2023-11-29 01:27:40,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:27:40,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-29 01:27:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:40,330 INFO L225 Difference]: With dead ends: 550 [2023-11-29 01:27:40,330 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 01:27:40,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:27:40,333 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 127 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:40,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 169 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:27:40,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 01:27:40,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 268. [2023-11-29 01:27:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 191 states have (on average 1.2722513089005236) internal successors, (243), 207 states have internal predecessors, (243), 39 states have call successors, (39), 29 states have call predecessors, (39), 37 states have return successors, (61), 39 states have call predecessors, (61), 39 states have call successors, (61) [2023-11-29 01:27:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 343 transitions. [2023-11-29 01:27:40,373 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 343 transitions. Word has length 40 [2023-11-29 01:27:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:40,374 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 343 transitions. [2023-11-29 01:27:40,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:27:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 343 transitions. [2023-11-29 01:27:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 01:27:40,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:40,377 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:40,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:27:40,377 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:40,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:40,378 INFO L85 PathProgramCache]: Analyzing trace with hash 122017551, now seen corresponding path program 1 times [2023-11-29 01:27:40,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:40,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639986333] [2023-11-29 01:27:40,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:40,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:27:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:27:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 01:27:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:27:40,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:40,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639986333] [2023-11-29 01:27:40,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639986333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:40,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:40,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:27:40,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028429408] [2023-11-29 01:27:40,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:40,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:27:40,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:40,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:27:40,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:27:40,615 INFO L87 Difference]: Start difference. First operand 268 states and 343 transitions. Second operand has 12 states, 10 states have (on average 3.5) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:27:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:41,546 INFO L93 Difference]: Finished difference Result 784 states and 1038 transitions. [2023-11-29 01:27:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 01:27:41,547 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.5) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2023-11-29 01:27:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:41,552 INFO L225 Difference]: With dead ends: 784 [2023-11-29 01:27:41,552 INFO L226 Difference]: Without dead ends: 518 [2023-11-29 01:27:41,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 01:27:41,555 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 273 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:41,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 545 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:27:41,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-11-29 01:27:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 505. [2023-11-29 01:27:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 355 states have (on average 1.2225352112676056) internal successors, (434), 384 states have internal predecessors, (434), 77 states have call successors, (77), 58 states have call predecessors, (77), 72 states have return successors, (131), 76 states have call predecessors, (131), 77 states have call successors, (131) [2023-11-29 01:27:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 642 transitions. [2023-11-29 01:27:41,612 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 642 transitions. Word has length 47 [2023-11-29 01:27:41,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:41,613 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 642 transitions. [2023-11-29 01:27:41,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.5) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:27:41,613 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 642 transitions. [2023-11-29 01:27:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 01:27:41,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:41,615 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:41,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:27:41,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:41,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:41,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1114886669, now seen corresponding path program 1 times [2023-11-29 01:27:41,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:41,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130655985] [2023-11-29 01:27:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:41,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:27:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:27:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:41,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:41,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 01:27:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:41,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:27:41,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:41,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130655985] [2023-11-29 01:27:41,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130655985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:41,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:41,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:27:41,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891993196] [2023-11-29 01:27:41,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:41,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:27:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:41,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:27:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:27:41,710 INFO L87 Difference]: Start difference. First operand 505 states and 642 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:27:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:42,059 INFO L93 Difference]: Finished difference Result 1010 states and 1284 transitions. [2023-11-29 01:27:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:27:42,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2023-11-29 01:27:42,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:42,063 INFO L225 Difference]: With dead ends: 1010 [2023-11-29 01:27:42,064 INFO L226 Difference]: Without dead ends: 507 [2023-11-29 01:27:42,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:27:42,066 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 162 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:42,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 228 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:27:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-11-29 01:27:42,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 505. [2023-11-29 01:27:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 355 states have (on average 1.2056338028169014) internal successors, (428), 384 states have internal predecessors, (428), 77 states have call successors, (77), 58 states have call predecessors, (77), 72 states have return successors, (117), 76 states have call predecessors, (117), 77 states have call successors, (117) [2023-11-29 01:27:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 622 transitions. [2023-11-29 01:27:42,117 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 622 transitions. Word has length 47 [2023-11-29 01:27:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:42,118 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 622 transitions. [2023-11-29 01:27:42,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:27:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 622 transitions. [2023-11-29 01:27:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 01:27:42,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:42,121 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:42,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:27:42,121 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:42,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1691295611, now seen corresponding path program 1 times [2023-11-29 01:27:42,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:42,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644092875] [2023-11-29 01:27:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:42,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:27:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:27:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:27:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:27:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 01:27:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:27:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 01:27:42,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:42,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644092875] [2023-11-29 01:27:42,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644092875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:42,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:27:42,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:27:42,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476314351] [2023-11-29 01:27:42,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:42,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:27:42,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:42,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:27:42,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:27:42,244 INFO L87 Difference]: Start difference. First operand 505 states and 622 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:27:42,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:42,479 INFO L93 Difference]: Finished difference Result 1010 states and 1261 transitions. [2023-11-29 01:27:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:27:42,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2023-11-29 01:27:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:42,484 INFO L225 Difference]: With dead ends: 1010 [2023-11-29 01:27:42,484 INFO L226 Difference]: Without dead ends: 507 [2023-11-29 01:27:42,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:27:42,486 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 112 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:42,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 176 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:27:42,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-11-29 01:27:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2023-11-29 01:27:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 356 states have (on average 1.199438202247191) internal successors, (427), 385 states have internal predecessors, (427), 77 states have call successors, (77), 58 states have call predecessors, (77), 73 states have return successors, (119), 76 states have call predecessors, (119), 77 states have call successors, (119) [2023-11-29 01:27:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 623 transitions. [2023-11-29 01:27:42,519 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 623 transitions. Word has length 78 [2023-11-29 01:27:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:42,519 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 623 transitions. [2023-11-29 01:27:42,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:27:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 623 transitions. [2023-11-29 01:27:42,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 01:27:42,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:42,522 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:42,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:27:42,522 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:42,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1489471677, now seen corresponding path program 1 times [2023-11-29 01:27:42,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:42,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518680611] [2023-11-29 01:27:42,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:42,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 01:27:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:27:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:27:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:27:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 01:27:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:27:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 01:27:42,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:42,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518680611] [2023-11-29 01:27:42,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518680611] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:27:42,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821297794] [2023-11-29 01:27:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:42,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:27:42,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:27:42,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:27:42,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:27:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:42,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:27:42,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:27:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 01:27:42,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:27:42,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821297794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:27:42,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:27:42,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-11-29 01:27:42,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873477972] [2023-11-29 01:27:42,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:27:42,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:27:42,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:42,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:27:42,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:27:42,926 INFO L87 Difference]: Start difference. First operand 507 states and 623 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:27:43,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:43,004 INFO L93 Difference]: Finished difference Result 966 states and 1200 transitions. [2023-11-29 01:27:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:27:43,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2023-11-29 01:27:43,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:43,008 INFO L225 Difference]: With dead ends: 966 [2023-11-29 01:27:43,008 INFO L226 Difference]: Without dead ends: 461 [2023-11-29 01:27:43,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:27:43,011 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 6 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:43,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 203 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:27:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-29 01:27:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2023-11-29 01:27:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 325 states have (on average 1.2030769230769232) internal successors, (391), 351 states have internal predecessors, (391), 71 states have call successors, (71), 54 states have call predecessors, (71), 64 states have return successors, (99), 68 states have call predecessors, (99), 71 states have call successors, (99) [2023-11-29 01:27:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 561 transitions. [2023-11-29 01:27:43,053 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 561 transitions. Word has length 78 [2023-11-29 01:27:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:43,053 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 561 transitions. [2023-11-29 01:27:43,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:27:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 561 transitions. [2023-11-29 01:27:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 01:27:43,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:43,055 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:43,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:27:43,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:27:43,261 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:27:43,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:43,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1280864001, now seen corresponding path program 1 times [2023-11-29 01:27:43,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:43,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065914123] [2023-11-29 01:27:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:43,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 01:27:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:27:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:27:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:27:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 01:27:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 01:27:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:27:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:27:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 01:27:43,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:27:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065914123] [2023-11-29 01:27:43,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065914123] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:27:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440940281] [2023-11-29 01:27:43,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:43,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:27:43,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:27:43,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:27:43,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:27:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:27:43,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:27:43,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:27:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 01:27:43,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:27:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 01:27:44,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440940281] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:27:44,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:27:44,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8] total 21 [2023-11-29 01:27:44,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371997480] [2023-11-29 01:27:44,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:27:44,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 01:27:44,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:27:44,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 01:27:44,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:27:44,106 INFO L87 Difference]: Start difference. First operand 461 states and 561 transitions. Second operand has 21 states, 19 states have (on average 5.684210526315789) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 01:27:45,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:45,477 INFO L93 Difference]: Finished difference Result 992 states and 1256 transitions. [2023-11-29 01:27:45,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-29 01:27:45,478 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.684210526315789) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) Word has length 78 [2023-11-29 01:27:45,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:45,478 INFO L225 Difference]: With dead ends: 992 [2023-11-29 01:27:45,478 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 01:27:45,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 168 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1095 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=988, Invalid=3302, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 01:27:45,484 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 723 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:45,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 321 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:27:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 01:27:45,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 01:27:45,485 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 01:27:45,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 01:27:45,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-11-29 01:27:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:45,486 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 01:27:45,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.684210526315789) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2023-11-29 01:27:45,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 01:27:45,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 01:27:45,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:27:45,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:27:45,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:27:45,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 01:27:47,437 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 720 726) no Hoare annotation was computed. [2023-11-29 01:27:47,438 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 720 726) the Hoare annotation is: true [2023-11-29 01:27:47,438 INFO L899 garLoopResultBuilder]: For program point L626-1(lines 622 633) no Hoare annotation was computed. [2023-11-29 01:27:47,438 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 622 633) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse6 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse1 (not .cse6)) (.cse3 (not (= ~pumpRunning~0 1))) (.cse0 (< 2 ~waterLevel~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse7 (not .cse2)) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse2 .cse4) (or .cse0 .cse6 .cse7 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse4)))) [2023-11-29 01:27:47,438 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 622 633) no Hoare annotation was computed. [2023-11-29 01:27:47,438 INFO L899 garLoopResultBuilder]: For program point L700-1(lines 699 718) no Hoare annotation was computed. [2023-11-29 01:27:47,439 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 770) no Hoare annotation was computed. [2023-11-29 01:27:47,439 INFO L899 garLoopResultBuilder]: For program point L758(lines 758 775) no Hoare annotation was computed. [2023-11-29 01:27:47,439 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2023-11-29 01:27:47,439 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 82) no Hoare annotation was computed. [2023-11-29 01:27:47,439 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 54 86) no Hoare annotation was computed. [2023-11-29 01:27:47,439 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse8 (<= ~waterLevel~0 1)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse10)) (.cse1 (and .cse3 .cse8 .cse10 .cse4)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse7 (= ~pumpRunning~0 1)) (.cse2 (= 0 ~systemActive~0)) (.cse6 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2) (or .cse0 (and .cse3 .cse4) .cse5 .cse2 .cse6) (or .cse0 .cse1 (not .cse5) .cse2 .cse6 (and .cse4 .cse7)) (let ((.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse8 .cse9 .cse7) (not (= |old(~pumpRunning~0)| 1)) (and .cse3 .cse8 .cse9) .cse2 .cse6))))) [2023-11-29 01:27:47,439 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-11-29 01:27:47,439 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 606) no Hoare annotation was computed. [2023-11-29 01:27:47,440 INFO L899 garLoopResultBuilder]: For program point L602-2(lines 598 609) no Hoare annotation was computed. [2023-11-29 01:27:47,440 INFO L895 garLoopResultBuilder]: At program point L768(line 768) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1))) [2023-11-29 01:27:47,440 INFO L895 garLoopResultBuilder]: At program point L760(line 760) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1))) [2023-11-29 01:27:47,440 INFO L899 garLoopResultBuilder]: For program point L760-1(line 760) no Hoare annotation was computed. [2023-11-29 01:27:47,440 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 696 719) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse2) .cse0 .cse1))) [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point L967(line 967) no Hoare annotation was computed. [2023-11-29 01:27:47,441 INFO L895 garLoopResultBuilder]: At program point L773(line 773) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point L773-1(lines 754 778) no Hoare annotation was computed. [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point L707-1(lines 707 713) no Hoare annotation was computed. [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 83) no Hoare annotation was computed. [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 696 719) no Hoare annotation was computed. [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 494 523) no Hoare annotation was computed. [2023-11-29 01:27:47,441 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2023-11-29 01:27:47,442 INFO L902 garLoopResultBuilder]: At program point L508-1(lines 508 512) the Hoare annotation is: true [2023-11-29 01:27:47,442 INFO L902 garLoopResultBuilder]: At program point L504-2(lines 504 518) the Hoare annotation is: true [2023-11-29 01:27:47,442 INFO L902 garLoopResultBuilder]: At program point L500(line 500) the Hoare annotation is: true [2023-11-29 01:27:47,442 INFO L899 garLoopResultBuilder]: For program point L500-1(line 500) no Hoare annotation was computed. [2023-11-29 01:27:47,442 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 494 523) the Hoare annotation is: true [2023-11-29 01:27:47,442 INFO L899 garLoopResultBuilder]: For program point L519(lines 494 523) no Hoare annotation was computed. [2023-11-29 01:27:47,442 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2023-11-29 01:27:47,442 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 634 642) the Hoare annotation is: true [2023-11-29 01:27:47,442 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 634 642) no Hoare annotation was computed. [2023-11-29 01:27:47,442 INFO L899 garLoopResultBuilder]: For program point L944(lines 944 948) no Hoare annotation was computed. [2023-11-29 01:27:47,443 INFO L895 garLoopResultBuilder]: At program point L944-2(lines 936 949) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-29 01:27:47,443 INFO L899 garLoopResultBuilder]: For program point L907(lines 906 953) no Hoare annotation was computed. [2023-11-29 01:27:47,443 INFO L899 garLoopResultBuilder]: For program point L936(lines 936 949) no Hoare annotation was computed. [2023-11-29 01:27:47,443 INFO L895 garLoopResultBuilder]: At program point L928(line 928) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-29 01:27:47,443 INFO L899 garLoopResultBuilder]: For program point L957(lines 896 961) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point L916(lines 916 922) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point L916-1(lines 916 922) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L895 garLoopResultBuilder]: At program point L954(lines 905 955) the Hoare annotation is: false [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 586) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point L579-2(lines 579 586) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 932) no Hoare annotation was computed. [2023-11-29 01:27:47,444 INFO L899 garLoopResultBuilder]: For program point L926-1(lines 926 932) no Hoare annotation was computed. [2023-11-29 01:27:47,445 INFO L895 garLoopResultBuilder]: At program point L951(lines 906 953) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse5 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse7 .cse4 .cse5) (and .cse0 (not .cse6) .cse2 .cse3 .cse7 .cse4))) [2023-11-29 01:27:47,445 INFO L895 garLoopResultBuilder]: At program point L918(line 918) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse5 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse2 .cse3 .cse7 .cse4 .cse5) (and .cse0 (not .cse6) .cse2 .cse3 .cse7 .cse4))) [2023-11-29 01:27:47,445 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 610 621) no Hoare annotation was computed. [2023-11-29 01:27:47,445 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 610 621) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (< 1 |old(~waterLevel~0)|)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse6 (not (= ~pumpRunning~0 1))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse3) (or .cse5 .cse6 .cse2 .cse3) (or (not .cse1) .cse6 .cse2 .cse3 .cse4))) [2023-11-29 01:27:47,445 INFO L899 garLoopResultBuilder]: For program point L614-1(lines 610 621) no Hoare annotation was computed. [2023-11-29 01:27:47,445 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 728 752) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-11-29 01:27:47,445 INFO L895 garLoopResultBuilder]: At program point L742(line 742) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~5#1| 0) (<= ~waterLevel~0 1)) .cse0))) [2023-11-29 01:27:47,445 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 675 688) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 744) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 749) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 800) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L895 garLoopResultBuilder]: At program point L792(line 792) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1) (or .cse2 .cse0 .cse1) (or (< 2 ~waterLevel~0) .cse2 (and (= ~pumpRunning~0 0) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~5#1|) (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0)) .cse1))) [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point L794-2(lines 787 803) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point L792-1(line 792) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 881) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 728 752) no Hoare annotation was computed. [2023-11-29 01:27:47,446 INFO L899 garLoopResultBuilder]: For program point L877-2(lines 877 881) no Hoare annotation was computed. [2023-11-29 01:27:47,447 INFO L895 garLoopResultBuilder]: At program point L747(line 747) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-11-29 01:27:47,447 INFO L899 garLoopResultBuilder]: For program point L747-1(lines 728 752) no Hoare annotation was computed. [2023-11-29 01:27:47,447 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 685) no Hoare annotation was computed. [2023-11-29 01:27:47,447 INFO L902 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: true [2023-11-29 01:27:47,447 INFO L899 garLoopResultBuilder]: For program point L817-1(line 817) no Hoare annotation was computed. [2023-11-29 01:27:47,447 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 812 822) no Hoare annotation was computed. [2023-11-29 01:27:47,448 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 812 822) the Hoare annotation is: true [2023-11-29 01:27:47,450 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:27:47,452 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:27:47,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:27:47 BoogieIcfgContainer [2023-11-29 01:27:47,463 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:27:47,464 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:27:47,464 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:27:47,464 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:27:47,465 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:27:37" (3/4) ... [2023-11-29 01:27:47,467 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:27:47,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-29 01:27:47,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-29 01:27:47,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-29 01:27:47,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-29 01:27:47,470 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-29 01:27:47,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-29 01:27:47,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-29 01:27:47,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-29 01:27:47,478 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-29 01:27:47,479 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 01:27:47,479 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 01:27:47,480 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:27:47,480 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:27:47,593 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:27:47,594 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:27:47,594 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:27:47,594 INFO L158 Benchmark]: Toolchain (without parser) took 10603.50ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 100.3MB in the beginning and 182.5MB in the end (delta: -82.2MB). Peak memory consumption was 104.5kB. Max. memory is 16.1GB. [2023-11-29 01:27:47,595 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:27:47,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.87ms. Allocated memory is still 151.0MB. Free memory was 100.3MB in the beginning and 80.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:27:47,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.82ms. Allocated memory is still 151.0MB. Free memory was 80.9MB in the beginning and 78.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:27:47,596 INFO L158 Benchmark]: Boogie Preprocessor took 41.85ms. Allocated memory is still 151.0MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:27:47,596 INFO L158 Benchmark]: RCFGBuilder took 453.47ms. Allocated memory is still 151.0MB. Free memory was 76.3MB in the beginning and 111.4MB in the end (delta: -35.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-29 01:27:47,597 INFO L158 Benchmark]: TraceAbstraction took 9509.75ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 110.4MB in the beginning and 189.8MB in the end (delta: -79.5MB). Peak memory consumption was 125.0MB. Max. memory is 16.1GB. [2023-11-29 01:27:47,597 INFO L158 Benchmark]: Witness Printer took 130.03ms. Allocated memory is still 230.7MB. Free memory was 189.8MB in the beginning and 182.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 01:27:47,599 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.87ms. Allocated memory is still 151.0MB. Free memory was 100.3MB in the beginning and 80.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.82ms. Allocated memory is still 151.0MB. Free memory was 80.9MB in the beginning and 78.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.85ms. Allocated memory is still 151.0MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.47ms. Allocated memory is still 151.0MB. Free memory was 76.3MB in the beginning and 111.4MB in the end (delta: -35.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9509.75ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 110.4MB in the beginning and 189.8MB in the end (delta: -79.5MB). Peak memory consumption was 125.0MB. Max. memory is 16.1GB. * Witness Printer took 130.03ms. Allocated memory is still 230.7MB. Free memory was 189.8MB in the beginning and 182.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] - GenericResultAtLocation [Line: 125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [125] - GenericResultAtLocation [Line: 491]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [491] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] - GenericResultAtLocation [Line: 689]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [689] - GenericResultAtLocation [Line: 895]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] - GenericResultAtLocation [Line: 962]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [962] * 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: 967]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1968 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1930 mSDsluCounter, 2515 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1783 mSDsCounter, 741 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3193 IncrementalHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 741 mSolverCounterUnsat, 732 mSDtfsCounter, 3193 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 358 SyntacticMatches, 6 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1402 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=507occurred in iteration=10, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 49 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 1135 PreInvPairs, 1233 NumberOfFragments, 748 HoareAnnotationTreeSize, 1135 FomulaSimplifications, 755 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 3112 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 687 NumberOfCodeBlocks, 687 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 1274 SizeOfPredicates, 5 NumberOfNonLiveVariables, 602 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 170/196 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (waterLevel <= 1)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) || (((((waterLevel <= 1) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) && (pumpRunning == 1))) || ((((((methaneLevelCritical == 0) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && !((0 == systemActive))) && (pumpRunning == 1))) || ((((((pumpRunning == 0) && !((methaneLevelCritical == 0))) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && !((0 == systemActive)))) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-29 01:27:47,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d819aa-5347-44c3-a84e-9760a5067c1a/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