./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx --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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:09:15,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:09:15,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:09:15,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:09:15,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:09:15,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:09:15,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:09:15,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:09:15,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:09:15,882 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:09:15,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:09:15,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:09:15,884 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:09:15,885 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:09:15,885 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:09:15,886 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:09:15,886 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:09:15,887 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:09:15,888 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:09:15,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:09:15,889 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:09:15,890 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:09:15,890 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:09:15,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:09:15,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:09:15,892 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:09:15,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:09:15,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:09:15,894 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:09:15,894 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:09:15,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:09:15,895 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:09:15,896 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:09:15,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:09:15,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:09:15,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:09:15,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:09:15,898 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:09:15,899 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_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2023-11-21 22:09:16,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:09:16,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:09:16,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:09:16,182 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:09:16,187 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:09:16,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2023-11-21 22:09:19,314 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:09:19,625 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:09:19,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2023-11-21 22:09:19,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/data/cf599dce3/a193d5c90a6443d79efa89cf887d59b6/FLAG13cadd375 [2023-11-21 22:09:19,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/data/cf599dce3/a193d5c90a6443d79efa89cf887d59b6 [2023-11-21 22:09:19,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:09:19,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:09:19,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:19,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:09:19,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:09:19,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:19" (1/1) ... [2023-11-21 22:09:19,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338be739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:19, skipping insertion in model container [2023-11-21 22:09:19,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:19" (1/1) ... [2023-11-21 22:09:19,737 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:09:20,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:20,080 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:09:20,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2023-11-21 22:09:20,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [91] [2023-11-21 22:09:20,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2023-11-21 22:09:20,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [562] [2023-11-21 22:09:20,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [571] [2023-11-21 22:09:20,094 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [606] [2023-11-21 22:09:20,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [671] [2023-11-21 22:09:20,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [779] [2023-11-21 22:09:20,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:20,186 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:09:20,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20 WrapperNode [2023-11-21 22:09:20,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:20,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:20,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:09:20,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:09:20,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,291 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 59, calls inlined = 177, statements flattened = 1219 [2023-11-21 22:09:20,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:20,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:09:20,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:09:20,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:09:20,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,330 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,365 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:09:20,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:09:20,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:09:20,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:09:20,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:09:20,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (1/1) ... [2023-11-21 22:09:20,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:20,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:20,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:20,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:09:20,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:09:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:09:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:09:20,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:09:20,683 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:09:20,685 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:09:21,622 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:09:21,650 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:09:21,650 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:09:21,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:21 BoogieIcfgContainer [2023-11-21 22:09:21,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:09:21,667 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:09:21,668 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:09:21,673 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:09:21,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:21,674 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:09:19" (1/3) ... [2023-11-21 22:09:21,675 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a0c9e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:09:21, skipping insertion in model container [2023-11-21 22:09:21,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:21,675 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:20" (2/3) ... [2023-11-21 22:09:21,676 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a0c9e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:09:21, skipping insertion in model container [2023-11-21 22:09:21,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:21,676 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:21" (3/3) ... [2023-11-21 22:09:21,677 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2023-11-21 22:09:21,743 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:09:21,743 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:09:21,743 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:09:21,743 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:09:21,743 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:09:21,744 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:09:21,744 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:09:21,744 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:09:21,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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) [2023-11-21 22:09:21,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2023-11-21 22:09:21,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:21,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:21,806 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:21,807 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:21,807 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:09:21,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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) [2023-11-21 22:09:21,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2023-11-21 22:09:21,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:21,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:21,825 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:21,826 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:21,831 INFO L748 eck$LassoCheckResult]: Stem: 189#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 208#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 30#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 296#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 106#valid_product_returnLabel#1true main_#t~ret6#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 34#L183true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 87#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 122#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 136#L617-2true [2023-11-21 22:09:21,832 INFO L750 eck$LassoCheckResult]: Loop: 136#L617-2true assume !false; 216#L618true assume test_~splverifierCounter~0#1 < 4; 265#L619true havoc test_#t~nondet31#1;test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 66#L627true assume !(0 != test_~tmp~5#1); 76#L627-2true havoc test_#t~nondet32#1;test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 121#L637true assume !(0 != test_~tmp___0~1#1); 50#L637-2true havoc test_#t~nondet33#1;test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 141#L647true assume 0 != test_~tmp___2~0#1; 132#L653-2true assume { :begin_inline_timeShift } true; 88#L789true assume !(0 != ~pumpRunning~0); 217#L789-2true assume !(0 != ~systemActive~0); 248#L796-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 319#isMethaneLevelCritical_returnLabel#6true __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 82#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 186#L70-1true havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 237#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 136#L617-2true [2023-11-21 22:09:21,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-21 22:09:21,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:21,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109483032] [2023-11-21 22:09:21,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:21,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:21,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:21,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:21,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:21,992 INFO L85 PathProgramCache]: Analyzing trace with hash 200500364, now seen corresponding path program 1 times [2023-11-21 22:09:21,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:21,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790800734] [2023-11-21 22:09:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:21,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:22,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:22,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:22,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:22,037 INFO L85 PathProgramCache]: Analyzing trace with hash 38212981, now seen corresponding path program 1 times [2023-11-21 22:09:22,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:22,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345204612] [2023-11-21 22:09:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:22,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:22,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:22,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345204612] [2023-11-21 22:09:22,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345204612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:22,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:22,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:09:22,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067026066] [2023-11-21 22:09:22,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:22,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:22,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:09:22,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:09:22,588 INFO L87 Difference]: Start difference. First operand has 325 states, 324 states have (on average 1.3549382716049383) internal successors, (439), 324 states have internal predecessors, (439), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-11-21 22:09:22,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:09:22,732 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2023-11-21 22:09:22,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 422 transitions. [2023-11-21 22:09:22,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2023-11-21 22:09:22,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 309 states and 412 transitions. [2023-11-21 22:09:22,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2023-11-21 22:09:22,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2023-11-21 22:09:22,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 412 transitions. [2023-11-21 22:09:22,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:22,755 INFO L218 hiAutomatonCegarLoop]: Abstraction has 309 states and 412 transitions. [2023-11-21 22:09:22,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 412 transitions. [2023-11-21 22:09:22,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-11-21 22:09:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 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) [2023-11-21 22:09:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2023-11-21 22:09:22,842 INFO L240 hiAutomatonCegarLoop]: Abstraction has 309 states and 412 transitions. [2023-11-21 22:09:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:09:22,847 INFO L428 stractBuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2023-11-21 22:09:22,847 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:09:22,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 412 transitions. [2023-11-21 22:09:22,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2023-11-21 22:09:22,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:22,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:22,852 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:22,852 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] [2023-11-21 22:09:22,853 INFO L748 eck$LassoCheckResult]: Stem: 922#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 923#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 720#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 721#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 840#valid_product_returnLabel#1 main_#t~ret6#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 726#L183 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 727#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 811#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 859#L617-2 [2023-11-21 22:09:22,853 INFO L750 eck$LassoCheckResult]: Loop: 859#L617-2 assume !false; 872#L618 assume test_~splverifierCounter~0#1 < 4; 943#L619 havoc test_#t~nondet31#1;test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 778#L627 assume !(0 != test_~tmp~5#1); 780#L627-2 havoc test_#t~nondet32#1;test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 794#L637 assume !(0 != test_~tmp___0~1#1); 756#L637-2 havoc test_#t~nondet33#1;test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 757#L647 assume 0 != test_~tmp___2~0#1; 770#L653-2 assume { :begin_inline_timeShift } true; 812#L789 assume !(0 != ~pumpRunning~0); 749#L789-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 758#L873 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 760#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret44#1;havoc isMethaneAlarm_#t~ret44#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 969#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret42#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret42#1;havoc processEnvironment_#t~ret42#1; 708#L877 assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 709#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 737#L873-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 957#L796-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 958#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 807#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 808#L70-1 havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 921#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 859#L617-2 [2023-11-21 22:09:22,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-21 22:09:22,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226439068] [2023-11-21 22:09:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:22,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:22,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:22,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1409635115, now seen corresponding path program 1 times [2023-11-21 22:09:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:22,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888538101] [2023-11-21 22:09:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:22,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:22,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888538101] [2023-11-21 22:09:22,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888538101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:22,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:22,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:09:22,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335665926] [2023-11-21 22:09:22,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:22,907 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:09:22,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:22,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:09:22,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:09:22,908 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-21 22:09:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:09:23,020 INFO L93 Difference]: Finished difference Result 319 states and 405 transitions. [2023-11-21 22:09:23,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 405 transitions. [2023-11-21 22:09:23,023 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2023-11-21 22:09:23,027 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 405 transitions. [2023-11-21 22:09:23,027 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2023-11-21 22:09:23,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2023-11-21 22:09:23,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 405 transitions. [2023-11-21 22:09:23,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:23,030 INFO L218 hiAutomatonCegarLoop]: Abstraction has 319 states and 405 transitions. [2023-11-21 22:09:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 405 transitions. [2023-11-21 22:09:23,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-21 22:09:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 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) [2023-11-21 22:09:23,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 405 transitions. [2023-11-21 22:09:23,046 INFO L240 hiAutomatonCegarLoop]: Abstraction has 319 states and 405 transitions. [2023-11-21 22:09:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:09:23,047 INFO L428 stractBuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2023-11-21 22:09:23,048 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:09:23,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 319 states and 405 transitions. [2023-11-21 22:09:23,050 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2023-11-21 22:09:23,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:23,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:23,052 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:23,052 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] [2023-11-21 22:09:23,052 INFO L748 eck$LassoCheckResult]: Stem: 1504#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1332#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1333#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1430#valid_product_returnLabel#1 main_#t~ret6#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1; 1338#L183 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1339#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1410#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1442#L617-2 [2023-11-21 22:09:23,052 INFO L750 eck$LassoCheckResult]: Loop: 1442#L617-2 assume !false; 1455#L618 assume test_~splverifierCounter~0#1 < 4; 1520#L619 havoc test_#t~nondet31#1;test_~tmp~5#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1379#L627 assume !(0 != test_~tmp~5#1); 1381#L627-2 havoc test_#t~nondet32#1;test_~tmp___0~1#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 1394#L637 assume !(0 != test_~tmp___0~1#1); 1361#L637-2 havoc test_#t~nondet33#1;test_~tmp___2~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1362#L647 assume 0 != test_~tmp___2~0#1; 1372#L653-2 assume { :begin_inline_timeShift } true; 1408#L789 assume !(0 != ~pumpRunning~0); 1409#L789-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 1363#L873 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 1364#L847-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1369#L821-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1370#L760-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1535#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1525#L992-9 assume 0 != isHighWaterLevel_~tmp~10#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1508#L992-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1509#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 1503#L825-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1444#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1347#L821-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1344#L847-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1345#L873-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 1536#L796-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1537#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 1403#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 1404#L70-1 havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1502#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1442#L617-2 [2023-11-21 22:09:23,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-21 22:09:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:23,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143000175] [2023-11-21 22:09:23,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:23,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:23,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:23,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:23,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:23,074 INFO L85 PathProgramCache]: Analyzing trace with hash 523543232, now seen corresponding path program 1 times [2023-11-21 22:09:23,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:23,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569721238] [2023-11-21 22:09:23,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:23,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:23,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:23,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:23,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1429959799, now seen corresponding path program 1 times [2023-11-21 22:09:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:23,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509087863] [2023-11-21 22:09:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:23,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:23,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:23,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:24,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:24,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:09:24 BoogieIcfgContainer [2023-11-21 22:09:24,460 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:09:24,460 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:09:24,460 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:09:24,461 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:09:24,461 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:21" (3/4) ... [2023-11-21 22:09:24,463 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:09:24,546 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:09:24,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:09:24,547 INFO L158 Benchmark]: Toolchain (without parser) took 4868.95ms. Allocated memory is still 178.3MB. Free memory was 131.6MB in the beginning and 53.6MB in the end (delta: 78.0MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2023-11-21 22:09:24,547 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 89.1MB in the beginning and 89.1MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:09:24,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.83ms. Allocated memory is still 178.3MB. Free memory was 131.0MB in the beginning and 111.8MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:09:24,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.35ms. Allocated memory is still 178.3MB. Free memory was 111.2MB in the beginning and 106.5MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:09:24,548 INFO L158 Benchmark]: Boogie Preprocessor took 169.09ms. Allocated memory is still 178.3MB. Free memory was 106.5MB in the beginning and 100.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:09:24,572 INFO L158 Benchmark]: RCFGBuilder took 1204.76ms. Allocated memory is still 178.3MB. Free memory was 100.7MB in the beginning and 110.7MB in the end (delta: -10.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-11-21 22:09:24,572 INFO L158 Benchmark]: BuchiAutomizer took 2792.28ms. Allocated memory is still 178.3MB. Free memory was 109.7MB in the beginning and 56.7MB in the end (delta: 53.0MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2023-11-21 22:09:24,572 INFO L158 Benchmark]: Witness Printer took 85.91ms. Allocated memory is still 178.3MB. Free memory was 56.7MB in the beginning and 53.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:09:24,575 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 89.1MB in the beginning and 89.1MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.83ms. Allocated memory is still 178.3MB. Free memory was 131.0MB in the beginning and 111.8MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.35ms. Allocated memory is still 178.3MB. Free memory was 111.2MB in the beginning and 106.5MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 169.09ms. Allocated memory is still 178.3MB. Free memory was 106.5MB in the beginning and 100.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1204.76ms. Allocated memory is still 178.3MB. Free memory was 100.7MB in the beginning and 110.7MB in the end (delta: -10.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 2792.28ms. Allocated memory is still 178.3MB. Free memory was 109.7MB in the beginning and 56.7MB in the end (delta: 53.0MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. * Witness Printer took 85.91ms. Allocated memory is still 178.3MB. Free memory was 56.7MB in the beginning and 53.6MB 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,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [91] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [562] - GenericResultAtLocation [Line: 571]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [571] - GenericResultAtLocation [Line: 606]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [606] - GenericResultAtLocation [Line: 671]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [671] - GenericResultAtLocation [Line: 779]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [779] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 319 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 1889 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1889 mSDsluCounter, 851 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 715 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 617]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int methAndRunningLastTime ; [L92] int cleanupTimeShifts = 4; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L782] int pumpRunning = 0; [L783] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] int retValue_acc ; [L175] int tmp ; [L179] FCALL select_helpers() [L180] FCALL select_features() [L181] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L181] RET, EXPR valid_product() [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L185] FCALL setup() [L186] CALL runTest() [L164] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] RET __utac_acc__Specification2_spec__1() [L165] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp)) [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L660] CALL timeShift() [L789] COND FALSE !(\read(pumpRunning)) [L796] COND TRUE \read(systemActive) [L798] CALL processEnvironment() [L870] int tmp ; [L873] COND FALSE !(\read(pumpRunning)) [L888] CALL processEnvironment__wrappee__methaneQuery() [L844] int tmp ; [L847] COND FALSE !(\read(pumpRunning)) [L862] CALL processEnvironment__wrappee__highWaterSensor() [L818] int tmp ; [L821] COND TRUE ! pumpRunning [L823] CALL, EXPR isHighWaterLevel() [L984] int retValue_acc ; [L985] int tmp ; [L986] int tmp___0 ; [L990] CALL, EXPR isHighWaterSensorDry() [L757] int retValue_acc ; [L760] COND TRUE waterLevel < 2 [L761] retValue_acc = 1 [L762] return (retValue_acc); [L990] RET, EXPR isHighWaterSensorDry() [L990] tmp = isHighWaterSensorDry() [L992] COND TRUE \read(tmp) [L993] tmp___0 = 0 [L997] retValue_acc = tmp___0 [L998] return (retValue_acc); [L823] RET, EXPR isHighWaterLevel() [L823] tmp = isHighWaterLevel() [L825] COND FALSE !(\read(tmp)) [L831] FCALL processEnvironment__wrappee__base() [L862] RET processEnvironment__wrappee__highWaterSensor() [L888] RET processEnvironment__wrappee__methaneQuery() [L798] RET processEnvironment() [L804] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR isMethaneLevelCritical() [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 [L804] RET __utac_acc__Specification2_spec__2() [L660] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 617]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L92] int cleanupTimeShifts = 4; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L782] int pumpRunning = 0; [L783] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] int retValue_acc ; [L175] int tmp ; [L179] FCALL select_helpers() [L180] FCALL select_features() [L181] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L181] RET, EXPR valid_product() [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L185] FCALL setup() [L186] CALL runTest() [L164] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] RET __utac_acc__Specification2_spec__1() [L165] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp)) [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L660] CALL timeShift() [L789] COND FALSE !(\read(pumpRunning)) [L796] COND TRUE \read(systemActive) [L798] CALL processEnvironment() [L870] int tmp ; [L873] COND FALSE !(\read(pumpRunning)) [L888] CALL processEnvironment__wrappee__methaneQuery() [L844] int tmp ; [L847] COND FALSE !(\read(pumpRunning)) [L862] CALL processEnvironment__wrappee__highWaterSensor() [L818] int tmp ; [L821] COND TRUE ! pumpRunning [L823] CALL, EXPR isHighWaterLevel() [L984] int retValue_acc ; [L985] int tmp ; [L986] int tmp___0 ; [L990] CALL, EXPR isHighWaterSensorDry() [L757] int retValue_acc ; [L760] COND TRUE waterLevel < 2 [L761] retValue_acc = 1 [L762] return (retValue_acc); [L990] RET, EXPR isHighWaterSensorDry() [L990] tmp = isHighWaterSensorDry() [L992] COND TRUE \read(tmp) [L993] tmp___0 = 0 [L997] retValue_acc = tmp___0 [L998] return (retValue_acc); [L823] RET, EXPR isHighWaterLevel() [L823] tmp = isHighWaterLevel() [L825] COND FALSE !(\read(tmp)) [L831] FCALL processEnvironment__wrappee__base() [L862] RET processEnvironment__wrappee__highWaterSensor() [L888] RET processEnvironment__wrappee__methaneQuery() [L798] RET processEnvironment() [L804] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR isMethaneLevelCritical() [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 [L804] RET __utac_acc__Specification2_spec__2() [L660] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:09:24,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_915bc170-0e0e-4e98-a8be-3a5c8e726972/bin/uautomizer-verify-bycVGegfSx/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)