./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:24:13,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:24:13,477 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:24:13,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:24:13,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:24:13,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:24:13,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:24:13,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:24:13,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:24:13,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:24:13,541 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:24:13,542 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:24:13,543 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:24:13,545 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:24:13,545 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:24:13,546 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:24:13,546 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:24:13,547 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:24:13,547 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:24:13,548 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:24:13,548 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:24:13,549 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:24:13,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:24:13,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:24:13,551 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:24:13,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:24:13,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:24:13,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:24:13,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:24:13,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:24:13,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:24:13,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:24:13,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:24:13,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:24:13,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:24:13,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:24:13,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:24:13,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:24:13,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:24:13,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:24:13,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:24:13,578 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:24:13,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:24:13,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:24:13,579 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:24:13,579 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:24:13,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:24:13,580 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 [2023-11-23 21:24:13,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:24:13,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:24:13,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:24:13,969 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:24:13,970 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:24:13,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2023-11-23 21:24:17,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:24:17,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:24:17,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2023-11-23 21:24:17,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/data/43d514938/4ff0faa20e86443f93e2c76ed1b4a03b/FLAG3dd3b61a3 [2023-11-23 21:24:17,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/data/43d514938/4ff0faa20e86443f93e2c76ed1b4a03b [2023-11-23 21:24:17,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:24:17,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:24:17,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:24:17,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:24:17,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:24:17,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:17,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cf3395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17, skipping insertion in model container [2023-11-23 21:24:17,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:17,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:24:17,692 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_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2023-11-23 21:24:17,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:24:17,857 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:24:17,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2023-11-23 21:24:17,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] [2023-11-23 21:24:17,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2023-11-23 21:24:17,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] [2023-11-23 21:24:17,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] [2023-11-23 21:24:17,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [786] [2023-11-23 21:24:17,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [851] [2023-11-23 21:24:17,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] [2023-11-23 21:24:17,887 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_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2023-11-23 21:24:17,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:24:17,989 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:24:17,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17 WrapperNode [2023-11-23 21:24:17,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:24:17,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:24:17,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:24:17,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:24:17,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,059 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 216 [2023-11-23 21:24:18,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:24:18,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:24:18,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:24:18,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:24:18,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:24:18,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:24:18,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:24:18,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:24:18,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (1/1) ... [2023-11-23 21:24:18,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:24:18,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:24:18,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:24:18,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:24:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:24:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 21:24:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 21:24:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 21:24:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 21:24:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 21:24:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 21:24:18,216 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 21:24:18,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 21:24:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 21:24:18,217 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 21:24:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 21:24:18,218 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 21:24:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-23 21:24:18,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-23 21:24:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 21:24:18,220 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 21:24:18,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:24:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 21:24:18,223 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 21:24:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:24:18,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:24:18,381 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:24:18,384 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:24:18,850 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:24:19,011 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:24:19,011 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:24:19,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:19 BoogieIcfgContainer [2023-11-23 21:24:19,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:24:19,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:24:19,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:24:19,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:24:19,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:24:17" (1/3) ... [2023-11-23 21:24:19,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6219ec4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:24:19, skipping insertion in model container [2023-11-23 21:24:19,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:17" (2/3) ... [2023-11-23 21:24:19,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6219ec4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:24:19, skipping insertion in model container [2023-11-23 21:24:19,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:19" (3/3) ... [2023-11-23 21:24:19,023 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2023-11-23 21:24:19,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:24:19,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:24:19,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:24:19,096 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=FINITE_AUTOMATA, 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;@4380d077, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:24:19,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:24:19,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 51 states have internal predecessors, (58), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:24:19,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:24:19,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:19,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:19,112 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:19,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1928689344, now seen corresponding path program 1 times [2023-11-23 21:24:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:19,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468214568] [2023-11-23 21:24:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:19,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:19,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:19,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468214568] [2023-11-23 21:24:19,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468214568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:19,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:19,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:24:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85153314] [2023-11-23 21:24:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:19,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:24:19,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:19,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:24:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:24:19,357 INFO L87 Difference]: Start difference. First operand has 68 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 51 states have internal predecessors, (58), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:19,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:19,430 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2023-11-23 21:24:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:24:19,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-23 21:24:19,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:19,443 INFO L225 Difference]: With dead ends: 134 [2023-11-23 21:24:19,444 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 21:24:19,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:24:19,452 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:19,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:24:19,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 21:24:19,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-23 21:24:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 47 states have internal predecessors, (50), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 21:24:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2023-11-23 21:24:19,505 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 16 [2023-11-23 21:24:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:19,506 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2023-11-23 21:24:19,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2023-11-23 21:24:19,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:24:19,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:19,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:19,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:24:19,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:19,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:19,509 INFO L85 PathProgramCache]: Analyzing trace with hash 718882663, now seen corresponding path program 1 times [2023-11-23 21:24:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:19,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706227798] [2023-11-23 21:24:19,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:19,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:19,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:19,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:19,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706227798] [2023-11-23 21:24:19,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706227798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:19,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:19,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:19,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279512678] [2023-11-23 21:24:19,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:19,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:19,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:19,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:19,727 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:19,788 INFO L93 Difference]: Finished difference Result 103 states and 133 transitions. [2023-11-23 21:24:19,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:19,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-23 21:24:19,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:19,791 INFO L225 Difference]: With dead ends: 103 [2023-11-23 21:24:19,794 INFO L226 Difference]: Without dead ends: 55 [2023-11-23 21:24:19,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:19,799 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 7 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:19,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 101 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:24:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-23 21:24:19,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-23 21:24:19,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 42 states have internal predecessors, (44), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:24:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2023-11-23 21:24:19,823 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 17 [2023-11-23 21:24:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:19,824 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2023-11-23 21:24:19,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2023-11-23 21:24:19,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:24:19,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:19,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:19,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:24:19,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:19,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:19,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1206655594, now seen corresponding path program 1 times [2023-11-23 21:24:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:19,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830907680] [2023-11-23 21:24:19,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:19,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:19,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:19,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830907680] [2023-11-23 21:24:19,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830907680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:19,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:19,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:24:19,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028270198] [2023-11-23 21:24:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:19,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:24:19,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:24:19,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:24:19,981 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:20,122 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2023-11-23 21:24:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:24:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-23 21:24:20,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:20,125 INFO L225 Difference]: With dead ends: 108 [2023-11-23 21:24:20,125 INFO L226 Difference]: Without dead ends: 55 [2023-11-23 21:24:20,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:24:20,128 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 66 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:20,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 71 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:24:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-23 21:24:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-23 21:24:20,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.303030303030303) internal successors, (43), 42 states have internal predecessors, (43), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:24:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2023-11-23 21:24:20,142 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 19 [2023-11-23 21:24:20,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:20,143 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2023-11-23 21:24:20,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2023-11-23 21:24:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:24:20,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:20,145 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] [2023-11-23 21:24:20,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:24:20,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:20,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:20,147 INFO L85 PathProgramCache]: Analyzing trace with hash -785629819, now seen corresponding path program 1 times [2023-11-23 21:24:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490418963] [2023-11-23 21:24:20,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:20,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:24:20,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:20,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490418963] [2023-11-23 21:24:20,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490418963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:20,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:20,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:20,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249410228] [2023-11-23 21:24:20,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:20,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:20,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:20,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:20,243 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:24:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:20,313 INFO L93 Difference]: Finished difference Result 146 states and 188 transitions. [2023-11-23 21:24:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:20,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-23 21:24:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:20,316 INFO L225 Difference]: With dead ends: 146 [2023-11-23 21:24:20,316 INFO L226 Difference]: Without dead ends: 93 [2023-11-23 21:24:20,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:20,319 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 41 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:20,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:24:20,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-23 21:24:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2023-11-23 21:24:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 66 states have internal predecessors, (72), 17 states have call successors, (17), 15 states have call predecessors, (17), 15 states have return successors, (23), 15 states have call predecessors, (23), 17 states have call successors, (23) [2023-11-23 21:24:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2023-11-23 21:24:20,340 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 29 [2023-11-23 21:24:20,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:20,341 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2023-11-23 21:24:20,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:24:20,341 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2023-11-23 21:24:20,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 21:24:20,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:20,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:20,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:24:20,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:20,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:20,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1309150542, now seen corresponding path program 1 times [2023-11-23 21:24:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:20,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851988776] [2023-11-23 21:24:20,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:20,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:20,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:20,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851988776] [2023-11-23 21:24:20,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851988776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:20,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:20,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:24:20,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214611408] [2023-11-23 21:24:20,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:20,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:24:20,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:20,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:24:20,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:24:20,701 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:24:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:20,938 INFO L93 Difference]: Finished difference Result 259 states and 318 transitions. [2023-11-23 21:24:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:24:20,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2023-11-23 21:24:20,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:20,945 INFO L225 Difference]: With dead ends: 259 [2023-11-23 21:24:20,945 INFO L226 Difference]: Without dead ends: 170 [2023-11-23 21:24:20,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:24:20,952 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 109 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:20,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 202 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:24:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-23 21:24:21,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 142. [2023-11-23 21:24:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 101 states have internal predecessors, (112), 24 states have call successors, (24), 22 states have call predecessors, (24), 25 states have return successors, (33), 24 states have call predecessors, (33), 24 states have call successors, (33) [2023-11-23 21:24:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 169 transitions. [2023-11-23 21:24:21,009 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 169 transitions. Word has length 32 [2023-11-23 21:24:21,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:21,010 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 169 transitions. [2023-11-23 21:24:21,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:24:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 169 transitions. [2023-11-23 21:24:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:24:21,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:21,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:21,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:24:21,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:21,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:21,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1478242291, now seen corresponding path program 1 times [2023-11-23 21:24:21,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:21,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173431976] [2023-11-23 21:24:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:21,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:21,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:24:21,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:21,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173431976] [2023-11-23 21:24:21,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173431976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:21,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:21,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:24:21,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836197273] [2023-11-23 21:24:21,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:21,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:24:21,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:21,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:24:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:24:21,158 INFO L87 Difference]: Start difference. First operand 142 states and 169 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:24:21,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:21,365 INFO L93 Difference]: Finished difference Result 420 states and 504 transitions. [2023-11-23 21:24:21,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:24:21,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2023-11-23 21:24:21,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:21,371 INFO L225 Difference]: With dead ends: 420 [2023-11-23 21:24:21,371 INFO L226 Difference]: Without dead ends: 280 [2023-11-23 21:24:21,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:24:21,378 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 46 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:21,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 230 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:24:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-23 21:24:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 267. [2023-11-23 21:24:21,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 174 states have (on average 1.1839080459770115) internal successors, (206), 188 states have internal predecessors, (206), 45 states have call successors, (45), 41 states have call predecessors, (45), 47 states have return successors, (63), 45 states have call predecessors, (63), 45 states have call successors, (63) [2023-11-23 21:24:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 314 transitions. [2023-11-23 21:24:21,433 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 314 transitions. Word has length 35 [2023-11-23 21:24:21,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:21,433 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 314 transitions. [2023-11-23 21:24:21,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:24:21,434 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 314 transitions. [2023-11-23 21:24:21,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-23 21:24:21,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:21,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:21,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:24:21,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:21,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:21,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2140713188, now seen corresponding path program 1 times [2023-11-23 21:24:21,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:21,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28682196] [2023-11-23 21:24:21,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:21,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:24:21,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:24:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:24:21,499 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:24:21,499 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:24:21,500 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:24:21,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:24:21,505 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:21,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:24:21,535 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated [2023-11-23 21:24:21,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-23 21:24:21,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:24:21 BoogieIcfgContainer [2023-11-23 21:24:21,554 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:24:21,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:24:21,554 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:24:21,555 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:24:21,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:19" (3/4) ... [2023-11-23 21:24:21,556 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 21:24:21,568 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated [2023-11-23 21:24:21,572 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-23 21:24:21,623 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:24:21,623 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:24:21,624 INFO L158 Benchmark]: Toolchain (without parser) took 4221.40ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 145.4MB in the beginning and 128.6MB in the end (delta: 16.9MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2023-11-23 21:24:21,624 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:24:21,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.76ms. Allocated memory is still 178.3MB. Free memory was 149.9MB in the beginning and 130.2MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:24:21,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.15ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:24:21,626 INFO L158 Benchmark]: Boogie Preprocessor took 33.31ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 126.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:24:21,626 INFO L158 Benchmark]: RCFGBuilder took 918.32ms. Allocated memory is still 178.3MB. Free memory was 126.8MB in the beginning and 125.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:24:21,626 INFO L158 Benchmark]: TraceAbstraction took 2538.32ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 124.3MB in the beginning and 132.8MB in the end (delta: -8.5MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-11-23 21:24:21,627 INFO L158 Benchmark]: Witness Printer took 69.18ms. Allocated memory is still 213.9MB. Free memory was 132.8MB in the beginning and 128.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:24:21,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.76ms. Allocated memory is still 178.3MB. Free memory was 149.9MB in the beginning and 130.2MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.15ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.31ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 126.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 918.32ms. Allocated memory is still 178.3MB. Free memory was 126.8MB in the beginning and 125.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2538.32ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 124.3MB in the beginning and 132.8MB in the end (delta: -8.5MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 69.18ms. Allocated memory is still 213.9MB. Free memory was 132.8MB in the beginning and 128.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [557] - GenericResultAtLocation [Line: 786]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [786] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [851] - GenericResultAtLocation [Line: 886]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 83]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L564] int pumpRunning = 0; [L565] int systemActive = 1; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L535] int retValue_acc ; [L536] int tmp ; [L540] FCALL select_helpers() [L541] FCALL select_features() [L542] CALL, EXPR valid_product() [L878] int retValue_acc ; [L881] retValue_acc = 1 [L882] return (retValue_acc); [L542] RET, EXPR valid_product() [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) [L546] FCALL setup() [L547] CALL runTest() [L526] CALL test() [L788] int splverifierCounter ; [L789] int tmp ; [L790] int tmp___0 ; [L791] int tmp___1 ; [L792] int tmp___2 ; [L795] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L797] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L799] COND TRUE splverifierCounter < 4 [L805] tmp = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L809] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 [L809] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L815] tmp___0 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L819] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] COND FALSE !(\read(methaneLevelCritical)) [L921] methaneLevelCritical = 1 [L819] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L825] tmp___2 = __VERIFIER_nondet_int() [L827] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=1, tmp___2=1, waterLevel=2] [L840] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L578] COND TRUE \read(systemActive) [L580] CALL processEnvironment() [L652] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L655] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L626] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L644] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L600] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L603] COND TRUE ! pumpRunning [L605] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND FALSE !(waterLevel < 2) [L975] retValue_acc = 0 [L976] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND FALSE !(\read(tmp)) [L760] tmp___0 = 1 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L605] RET, EXPR isHighWaterLevel() [L605] tmp = isHighWaterLevel() [L607] COND TRUE \read(tmp) [L609] CALL activatePump() [L680] pumpRunning = 1 [L609] RET activatePump() [L644] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L670] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L580] RET processEnvironment() [L586] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) [L63] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) [L67] CALL __automaton_fail() [L83] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 783 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 414 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 380 IncrementalHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 369 mSDtfsCounter, 380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=6, InterpolantAutomatonStates: 27, 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, 6 MinimizatonAttempts, 43 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:24:21,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb48232a-351c-4fab-9dcc-b29e7d8f7d18/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE