./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:06,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:06,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 08:04:06,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:06,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:06,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:06,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:06,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:06,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:06,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:06,474 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:06,474 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:04:06,475 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:04:06,475 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:04:06,476 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:04:06,476 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:04:06,477 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:04:06,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:06,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:04:06,478 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:06,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:06,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:06,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:06,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:04:06,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:04:06,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:04:06,481 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:06,481 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:06,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:06,482 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:04:06,482 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:06,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:06,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:06,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:06,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:06,484 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:04:06,484 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2023-11-19 08:04:06,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:06,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:06,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:06,851 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:06,852 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:06,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2023-11-19 08:04:10,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:10,377 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:10,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2023-11-19 08:04:10,399 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/data/c9d1b47f1/a50d05ac7d6e462093050b956a269f3e/FLAG9baf9d4d1 [2023-11-19 08:04:10,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/data/c9d1b47f1/a50d05ac7d6e462093050b956a269f3e [2023-11-19 08:04:10,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:10,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:10,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:10,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:10,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:10,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:10,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d319f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10, skipping insertion in model container [2023-11-19 08:04:10,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:10,484 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:10,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:10,802 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:10,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-19 08:04:10,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2023-11-19 08:04:10,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] [2023-11-19 08:04:10,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] [2023-11-19 08:04:10,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] [2023-11-19 08:04:10,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] [2023-11-19 08:04:10,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] [2023-11-19 08:04:10,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] [2023-11-19 08:04:10,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:10,953 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:10,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10 WrapperNode [2023-11-19 08:04:10,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:10,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:10,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:10,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:10,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:10,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,019 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 58, calls inlined = 107, statements flattened = 704 [2023-11-19 08:04:11,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:11,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:11,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:11,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:11,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:11,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:11,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:11,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:11,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (1/1) ... [2023-11-19 08:04:11,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:11,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:11,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:11,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:11,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:11,282 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:11,285 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:11,871 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:11,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:11,884 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:04:11,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:11 BoogieIcfgContainer [2023-11-19 08:04:11,890 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:11,891 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:04:11,891 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:04:11,895 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:04:11,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:04:11,897 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:04:10" (1/3) ... [2023-11-19 08:04:11,898 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715c8916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:11, skipping insertion in model container [2023-11-19 08:04:11,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:04:11,898 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:10" (2/3) ... [2023-11-19 08:04:11,898 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715c8916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:11, skipping insertion in model container [2023-11-19 08:04:11,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:04:11,899 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:11" (3/3) ... [2023-11-19 08:04:11,900 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2023-11-19 08:04:11,965 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:04:11,965 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:04:11,965 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:04:11,965 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:04:11,965 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:04:11,966 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:04:11,966 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:04:11,966 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:04:11,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.346938775510204) internal successors, (264), 196 states have internal predecessors, (264), 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) [2023-11-19 08:04:12,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2023-11-19 08:04:12,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:12,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:12,020 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:12,020 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:12,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:04:12,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.346938775510204) internal successors, (264), 196 states have internal predecessors, (264), 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) [2023-11-19 08:04:12,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2023-11-19 08:04:12,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:12,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:12,033 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:12,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:12,040 INFO L748 eck$LassoCheckResult]: Stem: 107#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 122#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 26#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 177#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 63#valid_product_returnLabel#1true main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 25#L441true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 53#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 184#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 116#L297-2true [2023-11-19 08:04:12,041 INFO L750 eck$LassoCheckResult]: Loop: 116#L297-2true assume !false; 108#L298true assume test_~splverifierCounter~0#1 < 4; 32#L299true havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 156#L307true assume !(0 != test_~tmp~4#1); 19#L307-2true havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 96#L317true assume !(0 != test_~tmp___0~1#1); 39#L317-2true havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 101#L327true assume 0 != test_~tmp___2~0#1; 153#L333-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 181#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 159#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 190#L81true assume !(0 != ~pumpRunning~0); 166#L81-2true assume !(0 != ~systemActive~0); 77#L88-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 138#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 103#L884true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 50#L884-1true havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 139#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 116#L297-2true [2023-11-19 08:04:12,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-19 08:04:12,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:12,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735070738] [2023-11-19 08:04:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:12,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:12,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:12,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:12,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1358988270, now seen corresponding path program 1 times [2023-11-19 08:04:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:12,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988950685] [2023-11-19 08:04:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:12,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:12,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:12,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash 19635863, now seen corresponding path program 1 times [2023-11-19 08:04:12,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:12,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547225790] [2023-11-19 08:04:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:12,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:12,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:12,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547225790] [2023-11-19 08:04:12,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547225790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:12,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:12,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:12,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107624188] [2023-11-19 08:04:12,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:12,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:12,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:12,914 INFO L87 Difference]: Start difference. First operand has 197 states, 196 states have (on average 1.346938775510204) internal successors, (264), 196 states have internal predecessors, (264), 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) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2023-11-19 08:04:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:13,139 INFO L93 Difference]: Finished difference Result 447 states and 582 transitions. [2023-11-19 08:04:13,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 447 states and 582 transitions. [2023-11-19 08:04:13,157 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 289 [2023-11-19 08:04:13,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 447 states to 417 states and 552 transitions. [2023-11-19 08:04:13,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2023-11-19 08:04:13,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 417 [2023-11-19 08:04:13,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 417 states and 552 transitions. [2023-11-19 08:04:13,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:13,178 INFO L218 hiAutomatonCegarLoop]: Abstraction has 417 states and 552 transitions. [2023-11-19 08:04:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states and 552 transitions. [2023-11-19 08:04:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 242. [2023-11-19 08:04:13,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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) [2023-11-19 08:04:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 320 transitions. [2023-11-19 08:04:13,227 INFO L240 hiAutomatonCegarLoop]: Abstraction has 242 states and 320 transitions. [2023-11-19 08:04:13,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:13,234 INFO L428 stractBuchiCegarLoop]: Abstraction has 242 states and 320 transitions. [2023-11-19 08:04:13,235 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:04:13,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 320 transitions. [2023-11-19 08:04:13,238 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2023-11-19 08:04:13,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:13,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:13,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:13,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:13,240 INFO L748 eck$LassoCheckResult]: Stem: 748#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 749#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 732#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 733#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 825#valid_product_returnLabel#1 main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 728#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 729#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 810#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 768#L297-2 [2023-11-19 08:04:13,240 INFO L750 eck$LassoCheckResult]: Loop: 768#L297-2 assume !false; 750#L298 assume test_~splverifierCounter~0#1 < 4; 751#L299 havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 769#L307 assume !(0 != test_~tmp~4#1); 696#L307-2 havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 682#L317 assume !(0 != test_~tmp___0~1#1); 684#L317-2 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 722#L327 assume 0 != test_~tmp___2~0#1; 723#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 813#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 820#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 821#L81 assume !(0 != ~pumpRunning~0); 817#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 742#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 743#L113-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 662#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 663#L113-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 697#L139-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 698#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 796#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 736#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 700#L884-1 havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 797#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 768#L297-2 [2023-11-19 08:04:13,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:13,241 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-19 08:04:13,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:13,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320591682] [2023-11-19 08:04:13,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:13,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:13,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1571205990, now seen corresponding path program 1 times [2023-11-19 08:04:13,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:13,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634503691] [2023-11-19 08:04:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:13,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:13,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:13,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634503691] [2023-11-19 08:04:13,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634503691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:13,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:13,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:13,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081825175] [2023-11-19 08:04:13,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:13,288 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:04:13,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:13,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:13,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:13,290 INFO L87 Difference]: Start difference. First operand 242 states and 320 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-19 08:04:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:13,372 INFO L93 Difference]: Finished difference Result 307 states and 389 transitions. [2023-11-19 08:04:13,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 389 transitions. [2023-11-19 08:04:13,376 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2023-11-19 08:04:13,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 307 states and 389 transitions. [2023-11-19 08:04:13,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 307 [2023-11-19 08:04:13,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 307 [2023-11-19 08:04:13,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 389 transitions. [2023-11-19 08:04:13,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:13,383 INFO L218 hiAutomatonCegarLoop]: Abstraction has 307 states and 389 transitions. [2023-11-19 08:04:13,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 389 transitions. [2023-11-19 08:04:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2023-11-19 08:04:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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) [2023-11-19 08:04:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 389 transitions. [2023-11-19 08:04:13,401 INFO L240 hiAutomatonCegarLoop]: Abstraction has 307 states and 389 transitions. [2023-11-19 08:04:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:13,402 INFO L428 stractBuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2023-11-19 08:04:13,402 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 08:04:13,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 307 states and 389 transitions. [2023-11-19 08:04:13,405 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2023-11-19 08:04:13,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:13,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:13,407 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:13,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2023-11-19 08:04:13,407 INFO L748 eck$LassoCheckResult]: Stem: 1300#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1301#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1286#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1287#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1389#valid_product_returnLabel#1 main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1280#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1281#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1372#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1320#L297-2 [2023-11-19 08:04:13,408 INFO L750 eck$LassoCheckResult]: Loop: 1320#L297-2 assume !false; 1297#L298 assume test_~splverifierCounter~0#1 < 4; 1298#L299 havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1321#L307 assume !(0 != test_~tmp~4#1); 1249#L307-2 havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1235#L317 assume !(0 != test_~tmp___0~1#1); 1237#L317-2 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1274#L327 assume 0 != test_~tmp___2~0#1; 1275#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1373#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 1381#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1382#L81 assume !(0 != ~pumpRunning~0); 1390#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1295#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 1296#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1238#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1239#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 1327#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1349#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1399#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__methaneQuery_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret4#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1; 1228#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1230#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1324#L113-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1250#L139-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1251#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1352#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 1284#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1253#L884-1 havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1351#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1320#L297-2 [2023-11-19 08:04:13,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:13,409 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-19 08:04:13,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:13,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668408458] [2023-11-19 08:04:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:13,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:13,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1993866462, now seen corresponding path program 1 times [2023-11-19 08:04:13,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:13,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598972574] [2023-11-19 08:04:13,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:13,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:13,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:13,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598972574] [2023-11-19 08:04:13,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598972574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:13,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:13,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:13,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525046482] [2023-11-19 08:04:13,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:13,500 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:04:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:13,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:13,501 INFO L87 Difference]: Start difference. First operand 307 states and 389 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2023-11-19 08:04:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:13,681 INFO L93 Difference]: Finished difference Result 858 states and 1065 transitions. [2023-11-19 08:04:13,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 858 states and 1065 transitions. [2023-11-19 08:04:13,689 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 565 [2023-11-19 08:04:13,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 858 states to 858 states and 1065 transitions. [2023-11-19 08:04:13,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 858 [2023-11-19 08:04:13,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 858 [2023-11-19 08:04:13,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 858 states and 1065 transitions. [2023-11-19 08:04:13,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:13,702 INFO L218 hiAutomatonCegarLoop]: Abstraction has 858 states and 1065 transitions. [2023-11-19 08:04:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states and 1065 transitions. [2023-11-19 08:04:13,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 603. [2023-11-19 08:04:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 603 states have (on average 1.24212271973466) internal successors, (749), 602 states have internal predecessors, (749), 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) [2023-11-19 08:04:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 749 transitions. [2023-11-19 08:04:13,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 603 states and 749 transitions. [2023-11-19 08:04:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:13,747 INFO L428 stractBuchiCegarLoop]: Abstraction has 603 states and 749 transitions. [2023-11-19 08:04:13,747 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 08:04:13,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 603 states and 749 transitions. [2023-11-19 08:04:13,752 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 431 [2023-11-19 08:04:13,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:13,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:13,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:13,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:13,755 INFO L748 eck$LassoCheckResult]: Stem: 2477#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2478#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2464#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2465#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2581#valid_product_returnLabel#1 main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 2460#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2461#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2561#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2501#L297-2 [2023-11-19 08:04:13,756 INFO L750 eck$LassoCheckResult]: Loop: 2501#L297-2 assume !false; 2479#L298 assume test_~splverifierCounter~0#1 < 4; 2480#L299 havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2502#L307 assume !(0 != test_~tmp~4#1); 2570#L307-2 havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2978#L317 assume !(0 != test_~tmp___0~1#1); 2520#L317-2 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2453#L327 assume 0 != test_~tmp___2~0#1; 2454#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2563#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 2571#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2572#L81 assume !(0 != ~pumpRunning~0); 2582#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2472#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 2473#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2416#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2417#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 2813#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2812#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2811#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__methaneQuery_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret4#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1; 2809#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2499#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2500#L113-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2429#L139-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 2430#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2929#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 2928#L884 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2543#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret48#1;havoc __utac_acc__Specification5_spec__3_#t~ret48#1; 2544#L888 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2556#L884-1 havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2536#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2501#L297-2 [2023-11-19 08:04:13,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:13,757 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2023-11-19 08:04:13,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:13,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276607348] [2023-11-19 08:04:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:13,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:13,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash 529253817, now seen corresponding path program 1 times [2023-11-19 08:04:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:13,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275970978] [2023-11-19 08:04:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:13,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:13,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash -282786384, now seen corresponding path program 1 times [2023-11-19 08:04:13,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:13,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874106245] [2023-11-19 08:04:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:13,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:13,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:15,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:15,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:04:15 BoogieIcfgContainer [2023-11-19 08:04:15,233 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:04:15,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:04:15,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:04:15,234 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:04:15,234 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:11" (3/4) ... [2023-11-19 08:04:15,235 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 08:04:15,291 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:04:15,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:04:15,292 INFO L158 Benchmark]: Toolchain (without parser) took 4867.97ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 95.6MB in the beginning and 113.7MB in the end (delta: -18.2MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:15,292 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:15,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.58ms. Allocated memory is still 136.3MB. Free memory was 95.6MB in the beginning and 76.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:04:15,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.71ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 72.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:04:15,293 INFO L158 Benchmark]: Boogie Preprocessor took 48.67ms. Allocated memory is still 136.3MB. Free memory was 72.5MB in the beginning and 69.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:15,294 INFO L158 Benchmark]: RCFGBuilder took 820.55ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 69.7MB in the beginning and 135.5MB in the end (delta: -65.8MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-19 08:04:15,294 INFO L158 Benchmark]: BuchiAutomizer took 3341.50ms. Allocated memory is still 178.3MB. Free memory was 135.5MB in the beginning and 116.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-19 08:04:15,295 INFO L158 Benchmark]: Witness Printer took 57.94ms. Allocated memory is still 178.3MB. Free memory was 116.9MB in the beginning and 113.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:15,297 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.58ms. Allocated memory is still 136.3MB. Free memory was 95.6MB in the beginning and 76.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.71ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 72.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.67ms. Allocated memory is still 136.3MB. Free memory was 72.5MB in the beginning and 69.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 820.55ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 69.7MB in the beginning and 135.5MB in the end (delta: -65.8MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3341.50ms. Allocated memory is still 178.3MB. Free memory was 135.5MB in the beginning and 116.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 57.94ms. Allocated memory is still 178.3MB. Free memory was 116.9MB in the beginning and 113.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 283]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [283] - GenericResultAtLocation [Line: 353]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [353] - GenericResultAtLocation [Line: 454]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [454] - GenericResultAtLocation [Line: 820]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [820] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [855] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 603 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 430 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1905 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1905 mSDsluCounter, 2818 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1962 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 856 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 297]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L69] int pumpRunning = 0; [L70] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L624] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L857] int switchedOnBeforeTS ; [L906] int waterLevel = 1; [L907] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L432] int retValue_acc ; [L433] int tmp ; [L437] FCALL select_helpers() [L438] FCALL select_features() [L439] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L439] RET, EXPR valid_product() [L439] tmp = valid_product() [L441] COND TRUE \read(tmp) [L443] FCALL setup() [L444] CALL runTest() [L422] CALL __utac_acc__Specification5_spec__1() [L862] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L422] RET __utac_acc__Specification5_spec__1() [L423] CALL test() [L288] int splverifierCounter ; [L289] int tmp ; [L290] int tmp___0 ; [L291] int tmp___1 ; [L292] int tmp___2 ; [L295] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L297] COND TRUE 1 [L299] COND TRUE splverifierCounter < 4 [L305] tmp = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp)) [L315] tmp___0 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___0)) [L325] tmp___2 = __VERIFIER_nondet_int() [L327] COND TRUE \read(tmp___2) [L342] CALL timeShift() [L79] CALL __utac_acc__Specification5_spec__2() [L871] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L871] RET, EXPR isPumpRunning() [L871] switchedOnBeforeTS = isPumpRunning() [L79] RET __utac_acc__Specification5_spec__2() [L81] COND FALSE !(\read(pumpRunning)) [L88] COND TRUE \read(systemActive) [L90] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] CALL processEnvironment__wrappee__methaneQuery() [L110] int tmp ; [L113] COND TRUE ! pumpRunning [L115] CALL, EXPR isHighWaterLevel() [L250] int retValue_acc ; [L251] int tmp ; [L252] int tmp___0 ; [L256] CALL, EXPR isHighWaterSensorDry() [L986] int retValue_acc ; [L989] COND TRUE waterLevel < 2 [L990] retValue_acc = 1 [L991] return (retValue_acc); [L256] RET, EXPR isHighWaterSensorDry() [L256] tmp = isHighWaterSensorDry() [L258] COND TRUE \read(tmp) [L259] tmp___0 = 0 [L263] retValue_acc = tmp___0 [L264] return (retValue_acc); [L115] RET, EXPR isHighWaterLevel() [L115] tmp = isHighWaterLevel() [L117] COND FALSE !(\read(tmp)) [L123] FCALL processEnvironment__wrappee__base() [L154] RET processEnvironment__wrappee__methaneQuery() [L90] RET processEnvironment() [L96] CALL __utac_acc__Specification5_spec__3() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L977] int retValue_acc ; [L980] retValue_acc = waterLevel [L981] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND TRUE tmp != 2 [L886] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___0 = isPumpRunning() [L888] COND FALSE !(\read(tmp___0)) [L96] RET __utac_acc__Specification5_spec__3() [L342] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 297]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L69] int pumpRunning = 0; [L70] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L624] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L857] int switchedOnBeforeTS ; [L906] int waterLevel = 1; [L907] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L432] int retValue_acc ; [L433] int tmp ; [L437] FCALL select_helpers() [L438] FCALL select_features() [L439] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L439] RET, EXPR valid_product() [L439] tmp = valid_product() [L441] COND TRUE \read(tmp) [L443] FCALL setup() [L444] CALL runTest() [L422] CALL __utac_acc__Specification5_spec__1() [L862] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L422] RET __utac_acc__Specification5_spec__1() [L423] CALL test() [L288] int splverifierCounter ; [L289] int tmp ; [L290] int tmp___0 ; [L291] int tmp___1 ; [L292] int tmp___2 ; [L295] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L297] COND TRUE 1 [L299] COND TRUE splverifierCounter < 4 [L305] tmp = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp)) [L315] tmp___0 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___0)) [L325] tmp___2 = __VERIFIER_nondet_int() [L327] COND TRUE \read(tmp___2) [L342] CALL timeShift() [L79] CALL __utac_acc__Specification5_spec__2() [L871] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L871] RET, EXPR isPumpRunning() [L871] switchedOnBeforeTS = isPumpRunning() [L79] RET __utac_acc__Specification5_spec__2() [L81] COND FALSE !(\read(pumpRunning)) [L88] COND TRUE \read(systemActive) [L90] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] CALL processEnvironment__wrappee__methaneQuery() [L110] int tmp ; [L113] COND TRUE ! pumpRunning [L115] CALL, EXPR isHighWaterLevel() [L250] int retValue_acc ; [L251] int tmp ; [L252] int tmp___0 ; [L256] CALL, EXPR isHighWaterSensorDry() [L986] int retValue_acc ; [L989] COND TRUE waterLevel < 2 [L990] retValue_acc = 1 [L991] return (retValue_acc); [L256] RET, EXPR isHighWaterSensorDry() [L256] tmp = isHighWaterSensorDry() [L258] COND TRUE \read(tmp) [L259] tmp___0 = 0 [L263] retValue_acc = tmp___0 [L264] return (retValue_acc); [L115] RET, EXPR isHighWaterLevel() [L115] tmp = isHighWaterLevel() [L117] COND FALSE !(\read(tmp)) [L123] FCALL processEnvironment__wrappee__base() [L154] RET processEnvironment__wrappee__methaneQuery() [L90] RET processEnvironment() [L96] CALL __utac_acc__Specification5_spec__3() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L977] int retValue_acc ; [L980] retValue_acc = waterLevel [L981] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND TRUE tmp != 2 [L886] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___0 = isPumpRunning() [L888] COND FALSE !(\read(tmp___0)) [L96] RET __utac_acc__Specification5_spec__3() [L342] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:04:15,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e949c05f-30e8-4211-bfe3-cd49695ba7c1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (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(TERM)