./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:37,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:38,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:22:38,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:38,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:38,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:38,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:38,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:38,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:38,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:38,185 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:38,186 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:22:38,186 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:22:38,188 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:22:38,188 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:22:38,189 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:22:38,189 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:22:38,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:38,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:22:38,191 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:22:38,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:38,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:22:38,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:38,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:22:38,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:22:38,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:22:38,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:38,194 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:22:38,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:38,195 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:22:38,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:38,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:38,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:38,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:38,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:38,198 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:22:38,199 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_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 [2023-11-06 22:22:38,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:38,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:38,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:38,523 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:38,523 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:38,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2023-11-06 22:22:41,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:42,018 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:42,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2023-11-06 22:22:42,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/data/c9df6fe4c/0bc3a743e57740be99b436660f66ee42/FLAGb01e2dc65 [2023-11-06 22:22:42,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/data/c9df6fe4c/0bc3a743e57740be99b436660f66ee42 [2023-11-06 22:22:42,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:42,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:42,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:42,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:42,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:42,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1011a30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42, skipping insertion in model container [2023-11-06 22:22:42,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:42,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:42,488 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:42,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-06 22:22:42,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2023-11-06 22:22:42,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] [2023-11-06 22:22:42,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [520] [2023-11-06 22:22:42,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [624] [2023-11-06 22:22:42,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [826] [2023-11-06 22:22:42,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] [2023-11-06 22:22:42,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [928] [2023-11-06 22:22:42,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:42,584 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:42,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42 WrapperNode [2023-11-06 22:22:42,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:42,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:42,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:42,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:42,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,657 INFO L138 Inliner]: procedures = 56, calls = 103, calls flagged for inlining = 56, calls inlined = 89, statements flattened = 554 [2023-11-06 22:22:42,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:42,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:42,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:42,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:42,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:42,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:42,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:42,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:42,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (1/1) ... [2023-11-06 22:22:42,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:22:42,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:42,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:42,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:42,897 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:42,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:43,383 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:43,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:43,392 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:22:43,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:43 BoogieIcfgContainer [2023-11-06 22:22:43,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:43,396 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:22:43,396 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:22:43,410 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:22:43,410 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:22:43,411 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:22:42" (1/3) ... [2023-11-06 22:22:43,412 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14ff53dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:22:43, skipping insertion in model container [2023-11-06 22:22:43,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:22:43,412 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:42" (2/3) ... [2023-11-06 22:22:43,412 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14ff53dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:22:43, skipping insertion in model container [2023-11-06 22:22:43,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:22:43,413 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:43" (3/3) ... [2023-11-06 22:22:43,414 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product23.cil.c [2023-11-06 22:22:43,501 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:22:43,501 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:22:43,501 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:22:43,502 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:22:43,503 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:22:43,503 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:22:43,503 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:22:43,503 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:22:43,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3373493975903614) internal successors, (222), 166 states have internal predecessors, (222), 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) [2023-11-06 22:22:43,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2023-11-06 22:22:43,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:22:43,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:22:43,569 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:43,569 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:43,570 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:22:43,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3373493975903614) internal successors, (222), 166 states have internal predecessors, (222), 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) [2023-11-06 22:22:43,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2023-11-06 22:22:43,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:22:43,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:22:43,593 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:43,594 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:43,599 INFO L748 eck$LassoCheckResult]: Stem: 35#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 30#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 141#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 123#valid_product_returnLabel#1true main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 56#L611true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 93#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; 154#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 161#L837-2true [2023-11-06 22:22:43,600 INFO L750 eck$LassoCheckResult]: Loop: 161#L837-2true assume !false; 38#L838true assume test_~splverifierCounter~0#1 < 4; 36#L839true havoc test_#t~nondet45#1;test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 142#L847true assume !(0 != test_~tmp~7#1); 81#L847-2true havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 133#L857true assume !(0 != test_~tmp___0~1#1); 102#L857-2true havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 145#L867true assume 0 != test_~tmp___2~0#1; 165#L873-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 151#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 108#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 50#L641true assume !(0 != ~pumpRunning~0); 140#L641-2true assume !(0 != ~systemActive~0); 120#L648-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 79#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 85#L956true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 47#L956-1true havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 80#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 161#L837-2true [2023-11-06 22:22:43,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:43,609 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-06 22:22:43,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:43,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441841109] [2023-11-06 22:22:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:43,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:43,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:43,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:43,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:43,793 INFO L85 PathProgramCache]: Analyzing trace with hash 353150766, now seen corresponding path program 1 times [2023-11-06 22:22:43,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:43,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319739842] [2023-11-06 22:22:43,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:43,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:43,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:43,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:43,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:43,842 INFO L85 PathProgramCache]: Analyzing trace with hash -986201641, now seen corresponding path program 1 times [2023-11-06 22:22:43,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:43,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76263946] [2023-11-06 22:22:43,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:43,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:44,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:44,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:44,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76263946] [2023-11-06 22:22:44,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76263946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:44,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:44,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:22:44,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992908036] [2023-11-06 22:22:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:44,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:44,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:22:44,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:22:44,317 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3373493975903614) internal successors, (222), 166 states have internal predecessors, (222), 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) [2023-11-06 22:22:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:44,490 INFO L93 Difference]: Finished difference Result 387 states and 498 transitions. [2023-11-06 22:22:44,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 498 transitions. [2023-11-06 22:22:44,507 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 249 [2023-11-06 22:22:44,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 357 states and 468 transitions. [2023-11-06 22:22:44,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2023-11-06 22:22:44,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2023-11-06 22:22:44,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 468 transitions. [2023-11-06 22:22:44,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:44,522 INFO L218 hiAutomatonCegarLoop]: Abstraction has 357 states and 468 transitions. [2023-11-06 22:22:44,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 468 transitions. [2023-11-06 22:22:44,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 212. [2023-11-06 22:22:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 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) [2023-11-06 22:22:44,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2023-11-06 22:22:44,574 INFO L240 hiAutomatonCegarLoop]: Abstraction has 212 states and 278 transitions. [2023-11-06 22:22:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:22:44,579 INFO L428 stractBuchiCegarLoop]: Abstraction has 212 states and 278 transitions. [2023-11-06 22:22:44,579 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:22:44,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 278 transitions. [2023-11-06 22:22:44,581 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2023-11-06 22:22:44,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:22:44,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:22:44,582 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:44,582 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] [2023-11-06 22:22:44,582 INFO L748 eck$LassoCheckResult]: Stem: 626#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 627#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 618#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 619#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 711#valid_product_returnLabel#1 main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 657#L611 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 658#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; 685#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 675#L837-2 [2023-11-06 22:22:44,583 INFO L750 eck$LassoCheckResult]: Loop: 675#L837-2 assume !false; 632#L838 assume test_~splverifierCounter~0#1 < 4; 630#L839 havoc test_#t~nondet45#1;test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 631#L847 assume !(0 != test_~tmp~7#1); 610#L847-2 havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 676#L857 assume !(0 != test_~tmp___0~1#1); 602#L857-2 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 692#L867 assume 0 != test_~tmp___2~0#1; 645#L873-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 720#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 700#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 647#L641 assume !(0 != ~pumpRunning~0); 648#L641-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 650#L699 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 625#L673-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 572#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 573#L673-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 683#L699-1 havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 708#L648-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 673#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 674#L956 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 577#L956-1 havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 643#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 675#L837-2 [2023-11-06 22:22:44,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:44,583 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-06 22:22:44,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:44,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301121446] [2023-11-06 22:22:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:44,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:44,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:44,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:44,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:44,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1698677045, now seen corresponding path program 1 times [2023-11-06 22:22:44,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:44,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616742154] [2023-11-06 22:22:44,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:44,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:44,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:44,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:44,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1772623828, now seen corresponding path program 1 times [2023-11-06 22:22:44,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:44,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38997073] [2023-11-06 22:22:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:44,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:44,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38997073] [2023-11-06 22:22:44,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38997073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:44,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:44,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:22:44,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937466461] [2023-11-06 22:22:44,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:22:44,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:22:44,838 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-06 22:22:45,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:45,000 INFO L93 Difference]: Finished difference Result 603 states and 789 transitions. [2023-11-06 22:22:45,001 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 603 states and 789 transitions. [2023-11-06 22:22:45,008 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 388 [2023-11-06 22:22:45,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 603 states to 603 states and 789 transitions. [2023-11-06 22:22:45,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 603 [2023-11-06 22:22:45,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 603 [2023-11-06 22:22:45,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 603 states and 789 transitions. [2023-11-06 22:22:45,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:22:45,029 INFO L218 hiAutomatonCegarLoop]: Abstraction has 603 states and 789 transitions. [2023-11-06 22:22:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states and 789 transitions. [2023-11-06 22:22:45,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 414. [2023-11-06 22:22:45,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 414 states have (on average 1.2995169082125604) internal successors, (538), 413 states have internal predecessors, (538), 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) [2023-11-06 22:22:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 538 transitions. [2023-11-06 22:22:45,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 414 states and 538 transitions. [2023-11-06 22:22:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:22:45,078 INFO L428 stractBuchiCegarLoop]: Abstraction has 414 states and 538 transitions. [2023-11-06 22:22:45,079 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:22:45,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 414 states and 538 transitions. [2023-11-06 22:22:45,082 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2023-11-06 22:22:45,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:22:45,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:22:45,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:45,085 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] [2023-11-06 22:22:45,086 INFO L748 eck$LassoCheckResult]: Stem: 1458#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1459#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1449#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1450#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1560#valid_product_returnLabel#1 main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 1490#L611 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1491#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; 1527#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1513#L837-2 [2023-11-06 22:22:45,086 INFO L750 eck$LassoCheckResult]: Loop: 1513#L837-2 assume !false; 1464#L838 assume test_~splverifierCounter~0#1 < 4; 1462#L839 havoc test_#t~nondet45#1;test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1463#L847 assume !(0 != test_~tmp~7#1); 1514#L847-2 havoc test_#t~nondet46#1;test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1515#L857 assume !(0 != test_~tmp___0~1#1); 1429#L857-2 havoc test_#t~nondet47#1;test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 1538#L867 assume 0 != test_~tmp___2~0#1; 1790#L873-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 1574#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 1546#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1479#L641 assume !(0 != ~pumpRunning~0); 1480#L641-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1482#L699 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 1457#L673-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1401#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 1402#L673-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1525#L699-1 havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1555#L648-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1510#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 1511#L956 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 1593#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 1594#L960 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 1765#L956-1 havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1512#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1513#L837-2 [2023-11-06 22:22:45,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-06 22:22:45,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:45,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097482208] [2023-11-06 22:22:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:45,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:45,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:45,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:45,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:45,123 INFO L85 PathProgramCache]: Analyzing trace with hash 320064528, now seen corresponding path program 1 times [2023-11-06 22:22:45,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:45,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112880985] [2023-11-06 22:22:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:45,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:45,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:45,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:45,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:45,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1589514567, now seen corresponding path program 1 times [2023-11-06 22:22:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:45,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335865970] [2023-11-06 22:22:45,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:45,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:45,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:45,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:22:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:46,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:22:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:22:46,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:22:46 BoogieIcfgContainer [2023-11-06 22:22:46,439 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:22:46,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:22:46,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:22:46,440 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:22:46,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:43" (3/4) ... [2023-11-06 22:22:46,442 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 22:22:46,501 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:22:46,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:22:46,502 INFO L158 Benchmark]: Toolchain (without parser) took 4437.83ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 114.7MB in the beginning and 95.3MB in the end (delta: 19.5MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2023-11-06 22:22:46,503 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory was 118.5MB in the beginning and 118.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:46,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.35ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 109.2MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:22:46,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.97ms. Allocated memory is still 146.8MB. Free memory was 109.2MB in the beginning and 105.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:46,504 INFO L158 Benchmark]: Boogie Preprocessor took 55.77ms. Allocated memory is still 146.8MB. Free memory was 105.9MB in the beginning and 103.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:46,504 INFO L158 Benchmark]: RCFGBuilder took 671.87ms. Allocated memory is still 146.8MB. Free memory was 103.6MB in the beginning and 79.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 22:22:46,505 INFO L158 Benchmark]: BuchiAutomizer took 3043.32ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 79.2MB in the beginning and 98.4MB in the end (delta: -19.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-06 22:22:46,505 INFO L158 Benchmark]: Witness Printer took 61.70ms. Allocated memory is still 176.2MB. Free memory was 98.4MB in the beginning and 95.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:22:46,508 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory was 118.5MB in the beginning and 118.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.35ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 109.2MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.97ms. Allocated memory is still 146.8MB. Free memory was 109.2MB in the beginning and 105.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.77ms. Allocated memory is still 146.8MB. Free memory was 105.9MB in the beginning and 103.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 671.87ms. Allocated memory is still 146.8MB. Free memory was 103.6MB in the beginning and 79.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3043.32ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 79.2MB in the beginning and 98.4MB in the end (delta: -19.2MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Witness Printer took 61.70ms. Allocated memory is still 176.2MB. Free memory was 98.4MB in the beginning and 95.3MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [520] - GenericResultAtLocation [Line: 624]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [624] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [826] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] - GenericResultAtLocation [Line: 928]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [928] * 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 414 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 334 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, 1236 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1236 mSDsluCounter, 2163 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1666 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 497 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 837]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L929] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L602] int retValue_acc ; [L603] int tmp ; [L607] FCALL select_helpers() [L608] FCALL select_features() [L609] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L609] RET, EXPR valid_product() [L609] tmp = valid_product() [L611] COND TRUE \read(tmp) [L613] FCALL setup() [L614] CALL runTest() [L592] CALL __utac_acc__Specification5_spec__1() [L934] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L592] RET __utac_acc__Specification5_spec__1() [L593] CALL test() [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L837] COND TRUE 1 [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L882] CALL timeShift() [L639] CALL __utac_acc__Specification5_spec__2() [L943] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L943] RET, EXPR isPumpRunning() [L943] switchedOnBeforeTS = isPumpRunning() [L639] RET __utac_acc__Specification5_spec__2() [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L650] CALL processEnvironment() [L696] int tmp ; [L699] COND FALSE !(\read(pumpRunning)) [L714] CALL processEnvironment__wrappee__lowWaterSensor() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] FCALL processEnvironment__wrappee__base() [L714] RET processEnvironment__wrappee__lowWaterSensor() [L650] RET processEnvironment() [L656] CALL __utac_acc__Specification5_spec__3() [L949] int tmp ; [L950] int tmp___0 ; [L954] CALL, EXPR getWaterLevel() [L503] int retValue_acc ; [L506] retValue_acc = waterLevel [L507] return (retValue_acc); [L954] RET, EXPR getWaterLevel() [L954] tmp = getWaterLevel() [L956] COND TRUE tmp != 2 [L958] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L958] RET, EXPR isPumpRunning() [L958] tmp___0 = isPumpRunning() [L960] COND FALSE !(\read(tmp___0)) [L656] RET __utac_acc__Specification5_spec__3() [L882] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 837]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L929] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L602] int retValue_acc ; [L603] int tmp ; [L607] FCALL select_helpers() [L608] FCALL select_features() [L609] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L609] RET, EXPR valid_product() [L609] tmp = valid_product() [L611] COND TRUE \read(tmp) [L613] FCALL setup() [L614] CALL runTest() [L592] CALL __utac_acc__Specification5_spec__1() [L934] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L592] RET __utac_acc__Specification5_spec__1() [L593] CALL test() [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L837] COND TRUE 1 [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L882] CALL timeShift() [L639] CALL __utac_acc__Specification5_spec__2() [L943] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L943] RET, EXPR isPumpRunning() [L943] switchedOnBeforeTS = isPumpRunning() [L639] RET __utac_acc__Specification5_spec__2() [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L650] CALL processEnvironment() [L696] int tmp ; [L699] COND FALSE !(\read(pumpRunning)) [L714] CALL processEnvironment__wrappee__lowWaterSensor() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] FCALL processEnvironment__wrappee__base() [L714] RET processEnvironment__wrappee__lowWaterSensor() [L650] RET processEnvironment() [L656] CALL __utac_acc__Specification5_spec__3() [L949] int tmp ; [L950] int tmp___0 ; [L954] CALL, EXPR getWaterLevel() [L503] int retValue_acc ; [L506] retValue_acc = waterLevel [L507] return (retValue_acc); [L954] RET, EXPR getWaterLevel() [L954] tmp = getWaterLevel() [L956] COND TRUE tmp != 2 [L958] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L958] RET, EXPR isPumpRunning() [L958] tmp___0 = isPumpRunning() [L960] COND FALSE !(\read(tmp___0)) [L656] RET __utac_acc__Specification5_spec__3() [L882] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:22:46,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0170a2c-38f6-4093-b96c-461c3eb1140d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)