./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product59.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_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/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_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/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_abf74815-c7c4-4d77-88de-d556581c8fe7/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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:16:48,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:16:48,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:16:48,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:16:48,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:16:48,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:16:48,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:16:48,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:16:48,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:16:48,853 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:16:48,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:16:48,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:16:48,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:16:48,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:16:48,856 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:16:48,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:16:48,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:16:48,857 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:16:48,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:16:48,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:16:48,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:16:48,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:16:48,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:16:48,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:16:48,861 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:16:48,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:16:48,862 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:16:48,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:16:48,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:16:48,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:16:48,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:16:48,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:48,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:16:48,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:16:48,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:16:48,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:16:48,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:16:48,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:16:48,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:16:48,866 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:16:48,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:16:48,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:16:48,866 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_abf74815-c7c4-4d77-88de-d556581c8fe7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2023-11-29 06:16:49,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:16:49,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:16:49,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:16:49,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:16:49,115 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:16:49,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2023-11-29 06:16:51,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:16:52,027 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:16:52,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2023-11-29 06:16:52,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/data/8211b66f8/702f98607148453989895c46389afaf2/FLAGe45ce16cd [2023-11-29 06:16:52,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/data/8211b66f8/702f98607148453989895c46389afaf2 [2023-11-29 06:16:52,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:16:52,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:16:52,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:52,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:16:52,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:16:52,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19616b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52, skipping insertion in model container [2023-11-29 06:16:52,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,115 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:16:52,373 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_abf74815-c7c4-4d77-88de-d556581c8fe7/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2023-11-29 06:16:52,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:52,398 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:16:52,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-29 06:16:52,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] [2023-11-29 06:16:52,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] [2023-11-29 06:16:52,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] [2023-11-29 06:16:52,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] [2023-11-29 06:16:52,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] [2023-11-29 06:16:52,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] [2023-11-29 06:16:52,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] [2023-11-29 06:16:52,459 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_abf74815-c7c4-4d77-88de-d556581c8fe7/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2023-11-29 06:16:52,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:52,486 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:16:52,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52 WrapperNode [2023-11-29 06:16:52,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:52,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:52,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:16:52,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:16:52,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,535 INFO L138 Inliner]: procedures = 59, calls = 105, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 235 [2023-11-29 06:16:52,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:52,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:16:52,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:16:52,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:16:52,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,566 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 06:16:52,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:16:52,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:16:52,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:16:52,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:16:52,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (1/1) ... [2023-11-29 06:16:52,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:52,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:52,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:16:52,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:16:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:16:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-29 06:16:52,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-29 06:16:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-29 06:16:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-29 06:16:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-29 06:16:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-29 06:16:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:16:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:16:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-29 06:16:52,654 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-29 06:16:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-29 06:16:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-29 06:16:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-29 06:16:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-29 06:16:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:16:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-29 06:16:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-29 06:16:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:16:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:16:52,744 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:16:52,747 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:16:52,997 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:16:53,058 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:16:53,058 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:16:53,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:53 BoogieIcfgContainer [2023-11-29 06:16:53,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:16:53,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:16:53,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:16:53,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:16:53,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:16:52" (1/3) ... [2023-11-29 06:16:53,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:53, skipping insertion in model container [2023-11-29 06:16:53,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:52" (2/3) ... [2023-11-29 06:16:53,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:53, skipping insertion in model container [2023-11-29 06:16:53,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:53" (3/3) ... [2023-11-29 06:16:53,069 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2023-11-29 06:16:53,088 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:16:53,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:16:53,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:16:53,143 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;@962ac29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:16:53,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:16:53,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 64 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 06:16:53,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 06:16:53,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:53,156 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] [2023-11-29 06:16:53,156 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:53,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:53,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1966191368, now seen corresponding path program 1 times [2023-11-29 06:16:53,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:53,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139918954] [2023-11-29 06:16:53,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:53,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 06:16:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:16:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,354 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 06:16:53,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139918954] [2023-11-29 06:16:53,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139918954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:53,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:53,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:16:53,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606442295] [2023-11-29 06:16:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:53,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:16:53,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:53,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:16:53,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:16:53,397 INFO L87 Difference]: Start difference. First operand has 79 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 64 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:53,458 INFO L93 Difference]: Finished difference Result 156 states and 225 transitions. [2023-11-29 06:16:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:16:53,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 06:16:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:53,471 INFO L225 Difference]: With dead ends: 156 [2023-11-29 06:16:53,471 INFO L226 Difference]: Without dead ends: 74 [2023-11-29 06:16:53,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 06:16:53,479 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:53,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:16:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-29 06:16:53,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-29 06:16:53,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 60 states have internal predecessors, (74), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:16:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 101 transitions. [2023-11-29 06:16:53,523 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 101 transitions. Word has length 22 [2023-11-29 06:16:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:53,523 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 101 transitions. [2023-11-29 06:16:53,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:53,524 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 101 transitions. [2023-11-29 06:16:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 06:16:53,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:53,527 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] [2023-11-29 06:16:53,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:16:53,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:53,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:53,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1033814154, now seen corresponding path program 1 times [2023-11-29 06:16:53,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:53,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703334868] [2023-11-29 06:16:53,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:53,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:16:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 06:16:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,631 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 06:16:53,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:53,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703334868] [2023-11-29 06:16:53,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703334868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:53,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:53,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:16:53,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132627469] [2023-11-29 06:16:53,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:53,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:16:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:16:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:16:53,637 INFO L87 Difference]: Start difference. First operand 74 states and 101 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:53,678 INFO L93 Difference]: Finished difference Result 118 states and 160 transitions. [2023-11-29 06:16:53,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:16:53,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-29 06:16:53,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:53,681 INFO L225 Difference]: With dead ends: 118 [2023-11-29 06:16:53,681 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 06:16:53,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 06:16:53,684 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 14 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:53,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 135 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:16:53,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 06:16:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-29 06:16:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.446808510638298) internal successors, (68), 55 states have internal predecessors, (68), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 06:16:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-11-29 06:16:53,697 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 23 [2023-11-29 06:16:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:53,697 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-11-29 06:16:53,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-11-29 06:16:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 06:16:53,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:53,699 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] [2023-11-29 06:16:53,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:16:53,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:53,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 545141965, now seen corresponding path program 1 times [2023-11-29 06:16:53,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:53,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014084031] [2023-11-29 06:16:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:16:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 06:16:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:53,822 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 06:16:53,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:53,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014084031] [2023-11-29 06:16:53,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014084031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:53,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:53,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:16:53,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428988062] [2023-11-29 06:16:53,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:53,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:16:53,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:53,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:16:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:16:53,827 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:16:53,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:53,974 INFO L93 Difference]: Finished difference Result 185 states and 258 transitions. [2023-11-29 06:16:53,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:16:53,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-11-29 06:16:53,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:53,977 INFO L225 Difference]: With dead ends: 185 [2023-11-29 06:16:53,977 INFO L226 Difference]: Without dead ends: 121 [2023-11-29 06:16:53,978 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 06:16:53,980 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 100 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:53,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 206 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:16:53,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-29 06:16:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 104. [2023-11-29 06:16:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 74 states have (on average 1.445945945945946) internal successors, (107), 85 states have internal predecessors, (107), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (18), 13 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 06:16:54,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions. [2023-11-29 06:16:54,000 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 26 [2023-11-29 06:16:54,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:54,000 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions. [2023-11-29 06:16:54,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:16:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions. [2023-11-29 06:16:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 06:16:54,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:54,003 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] [2023-11-29 06:16:54,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:16:54,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:54,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:54,004 INFO L85 PathProgramCache]: Analyzing trace with hash -726068221, now seen corresponding path program 1 times [2023-11-29 06:16:54,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:54,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074380036] [2023-11-29 06:16:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:54,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:16:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 06:16:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:16:54,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:54,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074380036] [2023-11-29 06:16:54,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074380036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:54,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:54,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:16:54,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273604693] [2023-11-29 06:16:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:54,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:16:54,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:54,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:16:54,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:16:54,142 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:54,303 INFO L93 Difference]: Finished difference Result 244 states and 339 transitions. [2023-11-29 06:16:54,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:16:54,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-29 06:16:54,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:54,306 INFO L225 Difference]: With dead ends: 244 [2023-11-29 06:16:54,306 INFO L226 Difference]: Without dead ends: 142 [2023-11-29 06:16:54,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:16:54,309 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 47 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:54,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 339 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:16:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-29 06:16:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2023-11-29 06:16:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 99 states have (on average 1.3535353535353536) internal successors, (134), 110 states have internal predecessors, (134), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (27), 20 states have call predecessors, (27), 21 states have call successors, (27) [2023-11-29 06:16:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 182 transitions. [2023-11-29 06:16:54,330 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 182 transitions. Word has length 29 [2023-11-29 06:16:54,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:54,331 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 182 transitions. [2023-11-29 06:16:54,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:16:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 182 transitions. [2023-11-29 06:16:54,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 06:16:54,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:54,334 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:54,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:16:54,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:54,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:54,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1805670548, now seen corresponding path program 1 times [2023-11-29 06:16:54,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:54,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301522162] [2023-11-29 06:16:54,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:54,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:16:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:16:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:16:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,391 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 06:16:54,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:54,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301522162] [2023-11-29 06:16:54,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301522162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:54,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:54,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:16:54,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581331537] [2023-11-29 06:16:54,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:54,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:16:54,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:54,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:16:54,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:16:54,394 INFO L87 Difference]: Start difference. First operand 138 states and 182 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:54,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:54,552 INFO L93 Difference]: Finished difference Result 297 states and 390 transitions. [2023-11-29 06:16:54,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:16:54,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2023-11-29 06:16:54,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:54,554 INFO L225 Difference]: With dead ends: 297 [2023-11-29 06:16:54,555 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 06:16:54,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 06:16:54,557 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 84 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:54,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 189 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:16:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 06:16:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2023-11-29 06:16:54,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 96 states have internal predecessors, (116), 17 states have call successors, (17), 13 states have call predecessors, (17), 16 states have return successors, (24), 18 states have call predecessors, (24), 17 states have call successors, (24) [2023-11-29 06:16:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 157 transitions. [2023-11-29 06:16:54,576 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 157 transitions. Word has length 43 [2023-11-29 06:16:54,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:54,576 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 157 transitions. [2023-11-29 06:16:54,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 157 transitions. [2023-11-29 06:16:54,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:16:54,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:54,579 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] [2023-11-29 06:16:54,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:16:54,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:54,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:54,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1894821922, now seen corresponding path program 1 times [2023-11-29 06:16:54,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:54,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198910571] [2023-11-29 06:16:54,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:54,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:16:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:16:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:16:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,720 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 06:16:54,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:54,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198910571] [2023-11-29 06:16:54,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198910571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:54,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:54,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:16:54,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703940037] [2023-11-29 06:16:54,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:54,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:16:54,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:54,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:16:54,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:16:54,723 INFO L87 Difference]: Start difference. First operand 122 states and 157 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:54,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:54,890 INFO L93 Difference]: Finished difference Result 248 states and 327 transitions. [2023-11-29 06:16:54,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:16:54,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 06:16:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:54,893 INFO L225 Difference]: With dead ends: 248 [2023-11-29 06:16:54,893 INFO L226 Difference]: Without dead ends: 128 [2023-11-29 06:16:54,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:16:54,896 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 52 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:54,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 213 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:16:54,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-29 06:16:54,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2023-11-29 06:16:54,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 98 states have internal predecessors, (118), 17 states have call successors, (17), 13 states have call predecessors, (17), 16 states have return successors, (24), 18 states have call predecessors, (24), 17 states have call successors, (24) [2023-11-29 06:16:54,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 159 transitions. [2023-11-29 06:16:54,913 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 159 transitions. Word has length 40 [2023-11-29 06:16:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:54,914 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 159 transitions. [2023-11-29 06:16:54,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:54,914 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 159 transitions. [2023-11-29 06:16:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:16:54,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:54,916 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] [2023-11-29 06:16:54,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:16:54,917 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:54,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:54,917 INFO L85 PathProgramCache]: Analyzing trace with hash 811797472, now seen corresponding path program 1 times [2023-11-29 06:16:54,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:54,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622349548] [2023-11-29 06:16:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:54,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:16:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:16:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:16:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,007 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 06:16:55,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622349548] [2023-11-29 06:16:55,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622349548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:55,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:55,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:16:55,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226523743] [2023-11-29 06:16:55,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:55,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:16:55,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:55,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:16:55,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:16:55,011 INFO L87 Difference]: Start difference. First operand 124 states and 159 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:55,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:55,164 INFO L93 Difference]: Finished difference Result 255 states and 335 transitions. [2023-11-29 06:16:55,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:16:55,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 06:16:55,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:55,167 INFO L225 Difference]: With dead ends: 255 [2023-11-29 06:16:55,167 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 06:16:55,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:16:55,169 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 58 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:55,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 211 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:16:55,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 06:16:55,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 126. [2023-11-29 06:16:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 100 states have internal predecessors, (120), 17 states have call successors, (17), 13 states have call predecessors, (17), 16 states have return successors, (24), 18 states have call predecessors, (24), 17 states have call successors, (24) [2023-11-29 06:16:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 161 transitions. [2023-11-29 06:16:55,185 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 161 transitions. Word has length 40 [2023-11-29 06:16:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:55,186 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 161 transitions. [2023-11-29 06:16:55,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 161 transitions. [2023-11-29 06:16:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:16:55,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:55,187 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] [2023-11-29 06:16:55,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:16:55,187 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:55,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:55,188 INFO L85 PathProgramCache]: Analyzing trace with hash -877146270, now seen corresponding path program 1 times [2023-11-29 06:16:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:55,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676862092] [2023-11-29 06:16:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:55,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 06:16:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 06:16:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:16:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,259 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 06:16:55,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:55,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676862092] [2023-11-29 06:16:55,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676862092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:55,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:55,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:16:55,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273029569] [2023-11-29 06:16:55,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:55,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:16:55,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:55,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:16:55,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:16:55,262 INFO L87 Difference]: Start difference. First operand 126 states and 161 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:55,495 INFO L93 Difference]: Finished difference Result 364 states and 483 transitions. [2023-11-29 06:16:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:16:55,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 06:16:55,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:55,498 INFO L225 Difference]: With dead ends: 364 [2023-11-29 06:16:55,498 INFO L226 Difference]: Without dead ends: 240 [2023-11-29 06:16:55,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:16:55,500 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 178 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:55,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 213 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:16:55,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-29 06:16:55,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2023-11-29 06:16:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 172 states have (on average 1.25) internal successors, (215), 184 states have internal predecessors, (215), 35 states have call successors, (35), 29 states have call predecessors, (35), 30 states have return successors, (54), 35 states have call predecessors, (54), 35 states have call successors, (54) [2023-11-29 06:16:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 304 transitions. [2023-11-29 06:16:55,527 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 304 transitions. Word has length 40 [2023-11-29 06:16:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:55,528 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 304 transitions. [2023-11-29 06:16:55,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:16:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 304 transitions. [2023-11-29 06:16:55,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 06:16:55,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:55,529 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] [2023-11-29 06:16:55,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:16:55,529 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:55,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:55,530 INFO L85 PathProgramCache]: Analyzing trace with hash 282924872, now seen corresponding path program 1 times [2023-11-29 06:16:55,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:55,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187004937] [2023-11-29 06:16:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:16:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 06:16:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 06:16:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 06:16:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:55,718 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 06:16:55,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:55,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187004937] [2023-11-29 06:16:55,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187004937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:16:55,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:16:55,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:16:55,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935491847] [2023-11-29 06:16:55,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:16:55,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:16:55,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:55,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:16:55,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:16:55,720 INFO L87 Difference]: Start difference. First operand 238 states and 304 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:16:56,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:56,326 INFO L93 Difference]: Finished difference Result 636 states and 857 transitions. [2023-11-29 06:16:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 06:16:56,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2023-11-29 06:16:56,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:56,330 INFO L225 Difference]: With dead ends: 636 [2023-11-29 06:16:56,331 INFO L226 Difference]: Without dead ends: 444 [2023-11-29 06:16:56,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:16:56,333 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 454 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:56,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 295 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:16:56,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-29 06:16:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 370. [2023-11-29 06:16:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 267 states have (on average 1.2397003745318351) internal successors, (331), 288 states have internal predecessors, (331), 54 states have call successors, (54), 41 states have call predecessors, (54), 48 states have return successors, (86), 53 states have call predecessors, (86), 54 states have call successors, (86) [2023-11-29 06:16:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 471 transitions. [2023-11-29 06:16:56,369 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 471 transitions. Word has length 44 [2023-11-29 06:16:56,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:56,370 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 471 transitions. [2023-11-29 06:16:56,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:16:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 471 transitions. [2023-11-29 06:16:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 06:16:56,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:56,372 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:56,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:16:56,373 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:16:56,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:56,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1433965477, now seen corresponding path program 1 times [2023-11-29 06:16:56,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:56,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807368939] [2023-11-29 06:16:56,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:56,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:16:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:16:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:16:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:16:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 06:16:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 06:16:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:16:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:16:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 06:16:56,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:16:56,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807368939] [2023-11-29 06:16:56,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807368939] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:16:56,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958172514] [2023-11-29 06:16:56,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:56,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:56,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:56,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:16:56,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:16:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:16:56,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:16:56,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:16:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:16:56,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:16:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 06:16:57,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958172514] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:16:57,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:16:57,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-11-29 06:16:57,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234148093] [2023-11-29 06:16:57,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:16:57,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:16:57,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:16:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:16:57,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:16:57,012 INFO L87 Difference]: Start difference. First operand 370 states and 471 transitions. Second operand has 15 states, 12 states have (on average 7.833333333333333) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 06:16:57,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:16:57,989 INFO L93 Difference]: Finished difference Result 772 states and 1003 transitions. [2023-11-29 06:16:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 06:16:57,992 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 7.833333333333333) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 78 [2023-11-29 06:16:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:16:57,993 INFO L225 Difference]: With dead ends: 772 [2023-11-29 06:16:57,993 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:16:57,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 174 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=260, Invalid=1072, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 06:16:57,996 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 255 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:16:57,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 900 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:16:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:16:57,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:16:57,998 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 06:16:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:16:57,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-11-29 06:16:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:16:57,998 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:16:57,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 7.833333333333333) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 06:16:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:16:57,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:16:58,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:16:58,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:16:58,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:16:58,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:17:00,194 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 352 359) no Hoare annotation was computed. [2023-11-29 06:17:00,195 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 352 359) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2023-11-29 06:17:00,195 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 267 273) no Hoare annotation was computed. [2023-11-29 06:17:00,195 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 267 273) the Hoare annotation is: true [2023-11-29 06:17:00,195 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 84 95) the Hoare annotation is: true [2023-11-29 06:17:00,195 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 84 95) no Hoare annotation was computed. [2023-11-29 06:17:00,195 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2023-11-29 06:17:00,196 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 895 924) no Hoare annotation was computed. [2023-11-29 06:17:00,196 INFO L899 garLoopResultBuilder]: For program point L920(lines 895 924) no Hoare annotation was computed. [2023-11-29 06:17:00,196 INFO L899 garLoopResultBuilder]: For program point L916(line 916) no Hoare annotation was computed. [2023-11-29 06:17:00,196 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 913) no Hoare annotation was computed. [2023-11-29 06:17:00,196 INFO L902 garLoopResultBuilder]: At program point L909-1(lines 909 913) the Hoare annotation is: true [2023-11-29 06:17:00,196 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 895 924) the Hoare annotation is: true [2023-11-29 06:17:00,196 INFO L902 garLoopResultBuilder]: At program point L905-2(lines 905 919) the Hoare annotation is: true [2023-11-29 06:17:00,196 INFO L902 garLoopResultBuilder]: At program point L901(line 901) the Hoare annotation is: true [2023-11-29 06:17:00,196 INFO L899 garLoopResultBuilder]: For program point L901-1(line 901) no Hoare annotation was computed. [2023-11-29 06:17:00,196 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2023-11-29 06:17:00,197 INFO L895 garLoopResultBuilder]: At program point L320(line 320) the Hoare annotation is: (let ((.cse0 (< |old(~pumpRunning~0)| 1)) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 .cse2) (or (not (= |old(~waterLevel~0)| 2)) .cse0 .cse1) (or .cse3 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or .cse3 (not .cse1)))) [2023-11-29 06:17:00,197 INFO L899 garLoopResultBuilder]: For program point L320-1(lines 301 325) no Hoare annotation was computed. [2023-11-29 06:17:00,197 INFO L899 garLoopResultBuilder]: For program point L64-2(lines 60 71) no Hoare annotation was computed. [2023-11-29 06:17:00,197 INFO L899 garLoopResultBuilder]: For program point L254-1(lines 254 260) no Hoare annotation was computed. [2023-11-29 06:17:00,197 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 448) no Hoare annotation was computed. [2023-11-29 06:17:00,198 INFO L899 garLoopResultBuilder]: For program point L444-2(lines 444 448) no Hoare annotation was computed. [2023-11-29 06:17:00,198 INFO L895 garLoopResultBuilder]: At program point L874(line 874) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse1 (= ~pumpRunning~0 0)) (.cse8 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0)) (.cse4 (< 2 |old(~waterLevel~0)|)) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse0 .cse3 .cse2) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse4) (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse5 .cse6 .cse7) .cse3 .cse8 .cse2 (and .cse1 .cse6 .cse7))) (let ((.cse9 (<= ~waterLevel~0 2))) (or (< |old(~switchedOnBeforeTS~0)| 1) (and .cse1 .cse9 .cse7) .cse8 .cse2 .cse4 (and .cse5 .cse9 .cse7))))) [2023-11-29 06:17:00,198 INFO L899 garLoopResultBuilder]: For program point L874-1(line 874) no Hoare annotation was computed. [2023-11-29 06:17:00,198 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 253) no Hoare annotation was computed. [2023-11-29 06:17:00,199 INFO L899 garLoopResultBuilder]: For program point L247-2(lines 243 265) no Hoare annotation was computed. [2023-11-29 06:17:00,199 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 317) no Hoare annotation was computed. [2023-11-29 06:17:00,199 INFO L899 garLoopResultBuilder]: For program point L305(lines 305 322) no Hoare annotation was computed. [2023-11-29 06:17:00,199 INFO L895 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse6 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not .cse2)) (or (and .cse1 .cse3 .cse4) .cse0 .cse2 .cse5) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse6 .cse2 (and .cse7 .cse3 .cse4) .cse5) (or (and .cse7 (= 2 ~waterLevel~0) .cse3) (not (= |old(~waterLevel~0)| 2)) .cse6 .cse2))) [2023-11-29 06:17:00,199 INFO L899 garLoopResultBuilder]: For program point L859-1(line 859) no Hoare annotation was computed. [2023-11-29 06:17:00,200 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 886) no Hoare annotation was computed. [2023-11-29 06:17:00,200 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 240 266) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse6 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not .cse2)) (or (and .cse1 .cse3 .cse4) .cse0 .cse2 .cse5) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse6 .cse2 (and .cse7 .cse3 .cse4) .cse5) (or (and .cse7 (= 2 ~waterLevel~0) .cse3) (not (= |old(~waterLevel~0)| 2)) .cse6 .cse2))) [2023-11-29 06:17:00,200 INFO L899 garLoopResultBuilder]: For program point L872(lines 872 889) no Hoare annotation was computed. [2023-11-29 06:17:00,200 INFO L899 garLoopResultBuilder]: For program point L872-1(lines 864 892) no Hoare annotation was computed. [2023-11-29 06:17:00,201 INFO L895 garLoopResultBuilder]: At program point L315(line 315) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (< |old(~pumpRunning~0)| 1)) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 .cse2 (and .cse3 (<= ~waterLevel~0 2) .cse4)) (or (and .cse3 (= ~waterLevel~0 1) .cse4) (not (= |old(~waterLevel~0)| 2)) .cse0 .cse1) (or .cse5 .cse2) (or .cse5 (not .cse1)))) [2023-11-29 06:17:00,201 INFO L895 garLoopResultBuilder]: At program point L311(line 311) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (< |old(~pumpRunning~0)| 1)) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 .cse2 (and .cse3 (<= ~waterLevel~0 2) .cse4)) (or (and .cse3 (= ~waterLevel~0 1) .cse4) (not (= |old(~waterLevel~0)| 2)) .cse0 .cse1) (or .cse5 .cse2) (or .cse5 (not .cse1)))) [2023-11-29 06:17:00,201 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 883) no Hoare annotation was computed. [2023-11-29 06:17:00,201 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 240 266) no Hoare annotation was computed. [2023-11-29 06:17:00,201 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 840) no Hoare annotation was computed. [2023-11-29 06:17:00,202 INFO L899 garLoopResultBuilder]: For program point L840(line 840) no Hoare annotation was computed. [2023-11-29 06:17:00,202 INFO L899 garLoopResultBuilder]: For program point L225(lines 164 229) no Hoare annotation was computed. [2023-11-29 06:17:00,202 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 190) no Hoare annotation was computed. [2023-11-29 06:17:00,202 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 184 190) no Hoare annotation was computed. [2023-11-29 06:17:00,202 INFO L895 garLoopResultBuilder]: At program point L222(lines 173 223) the Hoare annotation is: false [2023-11-29 06:17:00,202 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 216) no Hoare annotation was computed. [2023-11-29 06:17:00,203 INFO L895 garLoopResultBuilder]: At program point L210-2(lines 204 217) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (= 2 ~waterLevel~0) .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse6) (and .cse5 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4)))) [2023-11-29 06:17:00,203 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 464) no Hoare annotation was computed. [2023-11-29 06:17:00,203 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 458 464) no Hoare annotation was computed. [2023-11-29 06:17:00,203 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 200) no Hoare annotation was computed. [2023-11-29 06:17:00,203 INFO L899 garLoopResultBuilder]: For program point L194-1(lines 194 200) no Hoare annotation was computed. [2023-11-29 06:17:00,203 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 06:17:00,203 INFO L895 garLoopResultBuilder]: At program point L219(lines 174 221) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (= 2 ~waterLevel~0) .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse6) (and .cse5 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4)))) [2023-11-29 06:17:00,204 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (= 2 ~waterLevel~0) .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse6) (and .cse5 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4)))) [2023-11-29 06:17:00,204 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 06:17:00,204 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 987) no Hoare annotation was computed. [2023-11-29 06:17:00,204 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 987) no Hoare annotation was computed. [2023-11-29 06:17:00,204 INFO L899 garLoopResultBuilder]: For program point L175(lines 174 221) no Hoare annotation was computed. [2023-11-29 06:17:00,204 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 217) no Hoare annotation was computed. [2023-11-29 06:17:00,204 INFO L895 garLoopResultBuilder]: At program point L460(line 460) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-11-29 06:17:00,204 INFO L895 garLoopResultBuilder]: At program point L196(line 196) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (= 2 ~waterLevel~0) .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse6) (and .cse5 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4)))) [2023-11-29 06:17:00,205 INFO L895 garLoopResultBuilder]: At program point L289(line 289) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0)) .cse1))) [2023-11-29 06:17:00,205 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 291) no Hoare annotation was computed. [2023-11-29 06:17:00,205 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 296) no Hoare annotation was computed. [2023-11-29 06:17:00,205 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2023-11-29 06:17:00,205 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 275 299) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse1))) [2023-11-29 06:17:00,205 INFO L895 garLoopResultBuilder]: At program point L294(line 294) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1))) [2023-11-29 06:17:00,205 INFO L899 garLoopResultBuilder]: For program point L294-1(lines 275 299) no Hoare annotation was computed. [2023-11-29 06:17:00,206 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 137 150) no Hoare annotation was computed. [2023-11-29 06:17:00,206 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 275 299) no Hoare annotation was computed. [2023-11-29 06:17:00,206 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 348) no Hoare annotation was computed. [2023-11-29 06:17:00,206 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 335 351) no Hoare annotation was computed. [2023-11-29 06:17:00,206 INFO L899 garLoopResultBuilder]: For program point L425(lines 425 429) no Hoare annotation was computed. [2023-11-29 06:17:00,206 INFO L899 garLoopResultBuilder]: For program point L425-2(lines 425 429) no Hoare annotation was computed. [2023-11-29 06:17:00,207 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2023-11-29 06:17:00,207 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 72 83) no Hoare annotation was computed. [2023-11-29 06:17:00,207 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 72 83) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 (< ~switchedOnBeforeTS~0 1) .cse1 .cse2 .cse3) (or .cse0 (= 2 ~waterLevel~0) (not (= |old(~waterLevel~0)| 2)) .cse2) (or (not (= ~pumpRunning~0 0)) .cse1 .cse2 .cse3))) [2023-11-29 06:17:00,207 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 371 379) no Hoare annotation was computed. [2023-11-29 06:17:00,207 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 371 379) the Hoare annotation is: true [2023-11-29 06:17:00,210 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:17:00,212 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:17:00,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:17:00 BoogieIcfgContainer [2023-11-29 06:17:00,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:17:00,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:17:00,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:17:00,225 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:17:00,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:53" (3/4) ... [2023-11-29 06:17:00,227 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:17:00,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-29 06:17:00,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-29 06:17:00,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-29 06:17:00,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-29 06:17:00,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-29 06:17:00,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-29 06:17:00,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-29 06:17:00,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-29 06:17:00,239 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-29 06:17:00,240 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 06:17:00,240 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 06:17:00,241 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:17:00,242 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:17:00,352 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:17:00,352 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:17:00,353 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:17:00,353 INFO L158 Benchmark]: Toolchain (without parser) took 8291.02ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 130.6MB in the beginning and 97.1MB in the end (delta: 33.5MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. [2023-11-29 06:17:00,354 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:17:00,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.14ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 126.5MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 06:17:00,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.68ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:17:00,355 INFO L158 Benchmark]: Boogie Preprocessor took 45.50ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 122.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:17:00,355 INFO L158 Benchmark]: RCFGBuilder took 476.24ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 97.1MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 06:17:00,355 INFO L158 Benchmark]: TraceAbstraction took 7161.79ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 97.1MB in the beginning and 104.5MB in the end (delta: -7.4MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2023-11-29 06:17:00,356 INFO L158 Benchmark]: Witness Printer took 128.36ms. Allocated memory is still 243.3MB. Free memory was 104.5MB in the beginning and 97.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 06:17:00,357 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.14ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 126.5MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.68ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.50ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 122.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.24ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 97.1MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7161.79ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 97.1MB in the beginning and 104.5MB in the end (delta: -7.4MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * Witness Printer took 128.36ms. Allocated memory is still 243.3MB. Free memory was 104.5MB in the beginning and 97.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] - GenericResultAtLocation [Line: 230]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] - GenericResultAtLocation [Line: 469]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] - GenericResultAtLocation [Line: 835]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] - GenericResultAtLocation [Line: 993]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] * 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: 840]: 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, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1278 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1242 mSDsluCounter, 2791 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1961 mSDsCounter, 384 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2211 IncrementalHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 384 mSolverCounterUnsat, 830 mSDtfsCounter, 2211 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 241 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=9, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 110 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 556 PreInvPairs, 644 NumberOfFragments, 855 HoareAnnotationTreeSize, 556 FomulaSimplifications, 1633 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 24 FomulaSimplificationsInter, 4101 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 463 NumberOfCodeBlocks, 463 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 529 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 3 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 79/99 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: 905]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (tmp == 1)) && !((0 == systemActive))) || (((((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0)) && (tmp == 1)) && !((0 == systemActive)))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((((1 <= pumpRunning) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (tmp == 1)) && !((0 == systemActive)))) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-29 06:17:00,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf74815-c7c4-4d77-88de-d556581c8fe7/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