./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 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_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl --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 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:34:19,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:34:19,775 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-12 02:34:19,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:34:19,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:34:19,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:34:19,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:34:19,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:34:19,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:34:19,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:34:19,823 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:34:19,824 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:34:19,824 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:34:19,826 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:34:19,827 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:34:19,827 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:34:19,827 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:34:19,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:34:19,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:34:19,829 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:34:19,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:34:19,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:34:19,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:34:19,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:34:19,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:34:19,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:34:19,832 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:34:19,833 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:34:19,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:34:19,833 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:34:19,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:34:19,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:34:19,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:34:19,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:34:19,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:34:19,836 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:34:19,836 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_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2023-11-12 02:34:20,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:34:20,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:34:20,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:34:20,155 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:34:20,155 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:34:20,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2023-11-12 02:34:23,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:34:23,709 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:34:23,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2023-11-12 02:34:23,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/data/efd65894d/f7e62c1ae7914297b9ad9482dc853a40/FLAG08d1b5f63 [2023-11-12 02:34:23,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/data/efd65894d/f7e62c1ae7914297b9ad9482dc853a40 [2023-11-12 02:34:23,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:34:23,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:34:23,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:23,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:34:23,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:34:23,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:23,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66126fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:23, skipping insertion in model container [2023-11-12 02:34:23,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:34:23" (1/1) ... [2023-11-12 02:34:23,826 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:34:24,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:24,171 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:34:24,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-12 02:34:24,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2023-11-12 02:34:24,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] [2023-11-12 02:34:24,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] [2023-11-12 02:34:24,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] [2023-11-12 02:34:24,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] [2023-11-12 02:34:24,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] [2023-11-12 02:34:24,188 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] [2023-11-12 02:34:24,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:34:24,291 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:34:24,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24 WrapperNode [2023-11-12 02:34:24,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:34:24,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:24,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:34:24,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:34:24,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,415 INFO L138 Inliner]: procedures = 60, calls = 109, calls flagged for inlining = 62, calls inlined = 180, statements flattened = 1229 [2023-11-12 02:34:24,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:34:24,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:34:24,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:34:24,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:34:24,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:34:24,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:34:24,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:34:24,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:34:24,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (1/1) ... [2023-11-12 02:34:24,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:34:24,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:34:24,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:34:24,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:34:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:34:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:34:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:34:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:34:24,781 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:34:24,783 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:34:25,655 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:34:25,668 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:34:25,673 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:34:25,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:25 BoogieIcfgContainer [2023-11-12 02:34:25,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:34:25,681 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:34:25,681 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:34:25,686 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:34:25,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:34:25,688 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:34:23" (1/3) ... [2023-11-12 02:34:25,689 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47d86ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:34:25, skipping insertion in model container [2023-11-12 02:34:25,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:34:25,689 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:34:24" (2/3) ... [2023-11-12 02:34:25,692 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47d86ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:34:25, skipping insertion in model container [2023-11-12 02:34:25,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:34:25,693 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:25" (3/3) ... [2023-11-12 02:34:25,698 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2023-11-12 02:34:25,773 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:34:25,774 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:34:25,774 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:34:25,774 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:34:25,774 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:34:25,774 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:34:25,775 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:34:25,775 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:34:25,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 330 states, 329 states have (on average 1.3525835866261398) internal successors, (445), 329 states have internal predecessors, (445), 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) [2023-11-12 02:34:25,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2023-11-12 02:34:25,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:34:25,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:34:25,837 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:25,837 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:25,838 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:34:25,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 330 states, 329 states have (on average 1.3525835866261398) internal successors, (445), 329 states have internal predecessors, (445), 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) [2023-11-12 02:34:25,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2023-11-12 02:34:25,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:34:25,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:34:25,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:25,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:25,866 INFO L748 eck$LassoCheckResult]: Stem: 195#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 206#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 303#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 104#valid_product_returnLabel#1true main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 139#L671true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 82#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; 125#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 18#L377-2true [2023-11-12 02:34:25,867 INFO L750 eck$LassoCheckResult]: Loop: 18#L377-2true assume !false; 176#L378true assume test_~splverifierCounter~0#1 < 4; 126#L379true havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 225#L387true assume !(0 != test_~tmp~6#1); 289#L387-2true havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 149#L397true assume !(0 != test_~tmp___0~2#1); 179#L397-2true havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 16#L407true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 132#L415true assume !(0 != test_~tmp___1~0#1); 165#L415-2true assume { :begin_inline_timeShift } true; 23#L108true assume !(0 != ~pumpRunning~0); 283#L108-2true assume !(0 != ~systemActive~0); 71#L115-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#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; 324#isMethaneLevelCritical_returnLabel#6true __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 96#L462true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 312#L462-1true havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 240#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 18#L377-2true [2023-11-12 02:34:25,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-12 02:34:25,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:25,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730497152] [2023-11-12 02:34:25,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:25,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:25,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:26,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:26,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:26,036 INFO L85 PathProgramCache]: Analyzing trace with hash 821872921, now seen corresponding path program 1 times [2023-11-12 02:34:26,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:26,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652384494] [2023-11-12 02:34:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:26,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:26,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:26,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:26,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash 85931344, now seen corresponding path program 1 times [2023-11-12 02:34:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413651963] [2023-11-12 02:34:26,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:26,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:26,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413651963] [2023-11-12 02:34:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413651963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:26,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:26,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:34:26,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322261358] [2023-11-12 02:34:26,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:26,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:26,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:34:26,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:34:26,647 INFO L87 Difference]: Start difference. First operand has 330 states, 329 states have (on average 1.3525835866261398) internal successors, (445), 329 states have internal predecessors, (445), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2023-11-12 02:34:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:26,880 INFO L93 Difference]: Finished difference Result 1021 states and 1356 transitions. [2023-11-12 02:34:26,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1021 states and 1356 transitions. [2023-11-12 02:34:26,908 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 672 [2023-11-12 02:34:26,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1021 states to 981 states and 1316 transitions. [2023-11-12 02:34:26,927 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 981 [2023-11-12 02:34:26,930 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 981 [2023-11-12 02:34:26,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 981 states and 1316 transitions. [2023-11-12 02:34:26,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:26,938 INFO L218 hiAutomatonCegarLoop]: Abstraction has 981 states and 1316 transitions. [2023-11-12 02:34:26,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states and 1316 transitions. [2023-11-12 02:34:27,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 369. [2023-11-12 02:34:27,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 369 states have (on average 1.3414634146341464) internal successors, (495), 368 states have internal predecessors, (495), 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) [2023-11-12 02:34:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 495 transitions. [2023-11-12 02:34:27,014 INFO L240 hiAutomatonCegarLoop]: Abstraction has 369 states and 495 transitions. [2023-11-12 02:34:27,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:34:27,020 INFO L428 stractBuchiCegarLoop]: Abstraction has 369 states and 495 transitions. [2023-11-12 02:34:27,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:34:27,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 495 transitions. [2023-11-12 02:34:27,023 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 253 [2023-11-12 02:34:27,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:34:27,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:34:27,025 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:27,025 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] [2023-11-12 02:34:27,025 INFO L748 eck$LassoCheckResult]: Stem: 1643#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1644#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1422#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1423#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1561#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1562#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1529#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; 1530#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1402#L377-2 [2023-11-12 02:34:27,026 INFO L750 eck$LassoCheckResult]: Loop: 1402#L377-2 assume !false; 1403#L378 assume test_~splverifierCounter~0#1 < 4; 1584#L379 havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1585#L387 assume !(0 != test_~tmp~6#1); 1636#L387-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1605#L397 assume !(0 != test_~tmp___0~2#1); 1606#L397-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1396#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1397#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1488#L415-2 assume { :begin_inline_timeShift } true; 1414#L108 assume !(0 != ~pumpRunning~0); 1415#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1675#L192 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#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; 1676#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 1682#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 1517#L196 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1518#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1526#L192-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1507#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#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; 1508#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 1548#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 1549#L462-1 havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1665#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1402#L377-2 [2023-11-12 02:34:27,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:27,026 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-12 02:34:27,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:27,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17840150] [2023-11-12 02:34:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:27,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:27,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2003767412, now seen corresponding path program 1 times [2023-11-12 02:34:27,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:27,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174218922] [2023-11-12 02:34:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:27,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:34:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:34:27,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:34:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174218922] [2023-11-12 02:34:27,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174218922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:34:27,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:34:27,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:34:27,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881219573] [2023-11-12 02:34:27,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:34:27,140 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:34:27,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:34:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:34:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:34:27,142 INFO L87 Difference]: Start difference. First operand 369 states and 495 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:34:27,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:34:27,273 INFO L93 Difference]: Finished difference Result 375 states and 478 transitions. [2023-11-12 02:34:27,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 375 states and 478 transitions. [2023-11-12 02:34:27,277 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2023-11-12 02:34:27,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 375 states to 375 states and 478 transitions. [2023-11-12 02:34:27,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 375 [2023-11-12 02:34:27,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 375 [2023-11-12 02:34:27,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 375 states and 478 transitions. [2023-11-12 02:34:27,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:34:27,288 INFO L218 hiAutomatonCegarLoop]: Abstraction has 375 states and 478 transitions. [2023-11-12 02:34:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states and 478 transitions. [2023-11-12 02:34:27,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2023-11-12 02:34:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 375 states have (on average 1.2746666666666666) internal successors, (478), 374 states have internal predecessors, (478), 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) [2023-11-12 02:34:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 478 transitions. [2023-11-12 02:34:27,328 INFO L240 hiAutomatonCegarLoop]: Abstraction has 375 states and 478 transitions. [2023-11-12 02:34:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:34:27,332 INFO L428 stractBuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2023-11-12 02:34:27,332 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-12 02:34:27,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 375 states and 478 transitions. [2023-11-12 02:34:27,336 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2023-11-12 02:34:27,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:34:27,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:34:27,340 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:27,340 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:34:27,340 INFO L748 eck$LassoCheckResult]: Stem: 2339#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2340#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2158#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2159#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2256#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 2257#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2229#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; 2230#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2275#L377-2 [2023-11-12 02:34:27,342 INFO L750 eck$LassoCheckResult]: Loop: 2275#L377-2 assume !false; 2469#L378 assume test_~splverifierCounter~0#1 < 4; 2468#L379 havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2466#L387 assume !(0 != test_~tmp~6#1); 2464#L387-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2462#L397 assume !(0 != test_~tmp___0~2#1); 2327#L397-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2137#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2138#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2206#L415-2 assume { :begin_inline_timeShift } true; 2156#L108 assume !(0 != ~pumpRunning~0); 2157#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2376#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2374#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2346#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2239#L568-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2240#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2377#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2298#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2299#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 2219#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2221#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2278#L140-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2335#L166-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2228#L192-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 2301#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#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; 2474#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 2247#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 2248#L462-1 havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2470#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2275#L377-2 [2023-11-12 02:34:27,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:27,342 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-12 02:34:27,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:27,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560516208] [2023-11-12 02:34:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:27,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:27,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1458369170, now seen corresponding path program 1 times [2023-11-12 02:34:27,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:27,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376684267] [2023-11-12 02:34:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:27,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:27,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:34:27,413 INFO L85 PathProgramCache]: Analyzing trace with hash 870740631, now seen corresponding path program 1 times [2023-11-12 02:34:27,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:34:27,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851296986] [2023-11-12 02:34:27,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:34:27,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:34:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:27,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:34:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:28,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:34:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:34:28,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:34:28 BoogieIcfgContainer [2023-11-12 02:34:28,880 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:34:28,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:34:28,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:34:28,881 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:34:28,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:34:25" (3/4) ... [2023-11-12 02:34:28,883 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:34:28,937 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:34:28,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:34:28,938 INFO L158 Benchmark]: Toolchain (without parser) took 5187.76ms. Allocated memory is still 201.3MB. Free memory was 160.9MB in the beginning and 157.3MB in the end (delta: 3.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-12 02:34:28,939 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:28,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.54ms. Allocated memory is still 201.3MB. Free memory was 160.1MB in the beginning and 140.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:34:28,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.58ms. Allocated memory is still 201.3MB. Free memory was 140.7MB in the beginning and 135.7MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:34:28,940 INFO L158 Benchmark]: Boogie Preprocessor took 99.61ms. Allocated memory is still 201.3MB. Free memory was 135.7MB in the beginning and 131.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:34:28,940 INFO L158 Benchmark]: RCFGBuilder took 1162.17ms. Allocated memory is still 201.3MB. Free memory was 131.6MB in the beginning and 90.4MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-12 02:34:28,941 INFO L158 Benchmark]: BuchiAutomizer took 3199.31ms. Allocated memory is still 201.3MB. Free memory was 90.4MB in the beginning and 160.5MB in the end (delta: -70.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:34:28,941 INFO L158 Benchmark]: Witness Printer took 57.17ms. Allocated memory is still 201.3MB. Free memory was 160.5MB in the beginning and 157.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:34:28,943 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 539.54ms. Allocated memory is still 201.3MB. Free memory was 160.1MB in the beginning and 140.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.58ms. Allocated memory is still 201.3MB. Free memory was 140.7MB in the beginning and 135.7MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.61ms. Allocated memory is still 201.3MB. Free memory was 135.7MB in the beginning and 131.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1162.17ms. Allocated memory is still 201.3MB. Free memory was 131.6MB in the beginning and 90.4MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3199.31ms. Allocated memory is still 201.3MB. Free memory was 90.4MB in the beginning and 160.5MB in the end (delta: -70.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.17ms. Allocated memory is still 201.3MB. Free memory was 160.5MB in the beginning and 157.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] - GenericResultAtLocation [Line: 483]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] - GenericResultAtLocation [Line: 587]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] - GenericResultAtLocation [Line: 684]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] * 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 375 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. 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, 612 StatesRemovedByMinimization, 1 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, 2319 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2319 mSDsluCounter, 3265 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2522 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 743 mSDtfsCounter, 96 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: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L445] int methAndRunningLastTime ; [L485] int waterLevel = 1; [L486] int methaneLevelCritical = 0; [L588] int cleanupTimeShifts = 4; [L854] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] int retValue_acc ; [L663] int tmp ; [L667] FCALL select_helpers() [L668] FCALL select_features() [L669] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L669] RET, EXPR valid_product() [L669] tmp = valid_product() [L671] COND TRUE \read(tmp) [L673] FCALL setup() [L674] CALL runTest() [L655] CALL __utac_acc__Specification2_spec__1() [L450] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] RET __utac_acc__Specification2_spec__1() [L656] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___2) [L409] CALL startSystem() [L359] systemActive = 1 [L409] RET startSystem() [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L565] int retValue_acc ; [L568] COND TRUE waterLevel < 2 [L569] retValue_acc = 1 [L570] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification2_spec__2() [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isMethaneLevelCritical() [L524] int retValue_acc ; [L527] retValue_acc = methaneLevelCritical [L528] return (retValue_acc); [L460] RET, EXPR isMethaneLevelCritical() [L460] tmp = isMethaneLevelCritical() [L462] COND FALSE !(\read(tmp)) [L478] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__2() [L424] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L445] int methAndRunningLastTime ; [L485] int waterLevel = 1; [L486] int methaneLevelCritical = 0; [L588] int cleanupTimeShifts = 4; [L854] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] int retValue_acc ; [L663] int tmp ; [L667] FCALL select_helpers() [L668] FCALL select_features() [L669] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L669] RET, EXPR valid_product() [L669] tmp = valid_product() [L671] COND TRUE \read(tmp) [L673] FCALL setup() [L674] CALL runTest() [L655] CALL __utac_acc__Specification2_spec__1() [L450] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] RET __utac_acc__Specification2_spec__1() [L656] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___2) [L409] CALL startSystem() [L359] systemActive = 1 [L409] RET startSystem() [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L565] int retValue_acc ; [L568] COND TRUE waterLevel < 2 [L569] retValue_acc = 1 [L570] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification2_spec__2() [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isMethaneLevelCritical() [L524] int retValue_acc ; [L527] retValue_acc = methaneLevelCritical [L528] return (retValue_acc); [L460] RET, EXPR isMethaneLevelCritical() [L460] tmp = isMethaneLevelCritical() [L462] COND FALSE !(\read(tmp)) [L478] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__2() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:34:28,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524bf252-e516-48e9-bef3-087b8d20c96c/bin/uautomizer-verify-uTZkv6EMXl/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)