./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 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_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ --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 2d1ca9044da6bfd8ea8e8fb421260ee2f744733ad29714ab0a4cdf49955938a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:34:02,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:34:02,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-23 21:34:02,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:34:02,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:34:02,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:34:02,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:34:02,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:34:02,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:34:02,875 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:34:02,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:34:02,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:34:02,878 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:34:02,880 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 21:34:02,880 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 21:34:02,881 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 21:34:02,881 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 21:34:02,882 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 21:34:02,882 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 21:34:02,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:34:02,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 21:34:02,883 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:34:02,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:34:02,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:34:02,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:34:02,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 21:34:02,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 21:34:02,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 21:34:02,886 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:34:02,887 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:34:02,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:34:02,888 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 21:34:02,889 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:34:02,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:34:02,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:34:02,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:34:02,890 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:34:02,890 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 21:34:02,891 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_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d1ca9044da6bfd8ea8e8fb421260ee2f744733ad29714ab0a4cdf49955938a8 [2023-11-23 21:34:03,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:34:03,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:34:03,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:34:03,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:34:03,185 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:34:03,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2023-11-23 21:34:06,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:34:06,574 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:34:06,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2023-11-23 21:34:06,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/data/0f7424532/ddf66686f8d34cabb8b8b481135998dd/FLAGafe4c5816 [2023-11-23 21:34:06,612 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/data/0f7424532/ddf66686f8d34cabb8b8b481135998dd [2023-11-23 21:34:06,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:34:06,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:34:06,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:06,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:34:06,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:34:06,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:06" (1/1) ... [2023-11-23 21:34:06,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f2e45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:06, skipping insertion in model container [2023-11-23 21:34:06,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:06" (1/1) ... [2023-11-23 21:34:06,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:34:07,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:07,079 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:34:07,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-23 21:34:07,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [415] [2023-11-23 21:34:07,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [467] [2023-11-23 21:34:07,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [572] [2023-11-23 21:34:07,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [607] [2023-11-23 21:34:07,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [616] [2023-11-23 21:34:07,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [799] [2023-11-23 21:34:07,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [868] [2023-11-23 21:34:07,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:07,223 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:34:07,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07 WrapperNode [2023-11-23 21:34:07,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:07,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:07,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:34:07,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:34:07,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,313 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 54, calls inlined = 60, statements flattened = 359 [2023-11-23 21:34:07,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:07,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:34:07,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:34:07,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:34:07,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,346 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,360 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:34:07,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:34:07,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:34:07,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:34:07,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:34:07,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:34:07,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:34:07,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:34:07,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 21:34:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:34:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:34:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:34:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:34:07,652 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:34:07,655 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:34:07,989 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:34:08,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:34:08,002 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:34:08,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:08 BoogieIcfgContainer [2023-11-23 21:34:08,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:34:08,005 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 21:34:08,005 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 21:34:08,013 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 21:34:08,013 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:34:08,013 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:34:06" (1/3) ... [2023-11-23 21:34:08,014 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12762002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:34:08, skipping insertion in model container [2023-11-23 21:34:08,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:34:08,014 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (2/3) ... [2023-11-23 21:34:08,015 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12762002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:34:08, skipping insertion in model container [2023-11-23 21:34:08,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:34:08,015 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:08" (3/3) ... [2023-11-23 21:34:08,016 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product16.cil.c [2023-11-23 21:34:08,075 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 21:34:08,075 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 21:34:08,075 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 21:34:08,075 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 21:34:08,075 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 21:34:08,075 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 21:34:08,076 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 21:34:08,076 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 21:34:08,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.336283185840708) internal successors, (151), 113 states have internal predecessors, (151), 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) [2023-11-23 21:34:08,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2023-11-23 21:34:08,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:34:08,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:34:08,114 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:08,114 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] [2023-11-23 21:34:08,115 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 21:34:08,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.336283185840708) internal successors, (151), 113 states have internal predecessors, (151), 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) [2023-11-23 21:34:08,124 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2023-11-23 21:34:08,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:34:08,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:34:08,126 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:08,126 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] [2023-11-23 21:34:08,132 INFO L748 eck$LassoCheckResult]: Stem: 22#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 26#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 19#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 94#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 78#valid_product_returnLabel#1true main_#t~ret30#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 29#L559true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 62#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; 105#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#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; 16#L810-2true [2023-11-23 21:34:08,133 INFO L750 eck$LassoCheckResult]: Loop: 16#L810-2true assume !false; 65#L811true assume test_~splverifierCounter~0#1 < 4; 72#L812true havoc test_#t~nondet43#1;test_~tmp~7#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 21#L820true assume !(0 != test_~tmp~7#1); 86#L820-2true havoc test_#t~nondet44#1;test_~tmp___0~1#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 89#L830true assume !(0 != test_~tmp___0~1#1); 108#L830-2true havoc test_#t~nondet45#1;test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 90#L840true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet46#1;test_~tmp___1~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 32#L848true assume !(0 != test_~tmp___1~0#1); 34#L848-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret27#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 103#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret27#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret27#1;havoc __utac_acc__Specification5_spec__2_#t~ret27#1; 74#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret27#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 81#L634true assume !(0 != ~pumpRunning~0); 84#L634-2true assume !(0 != ~systemActive~0); 75#L641-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret28#1, __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 54#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret28#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret28#1;havoc __utac_acc__Specification5_spec__3_#t~ret28#1; 96#L446true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 66#L446-1true havoc __utac_acc__Specification5_spec__3_#t~ret28#1, __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 55#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 16#L810-2true [2023-11-23 21:34:08,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-23 21:34:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:08,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665538645] [2023-11-23 21:34:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:08,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:08,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:08,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:08,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash 150593915, now seen corresponding path program 1 times [2023-11-23 21:34:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:08,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19055007] [2023-11-23 21:34:08,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:08,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:08,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:08,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:08,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1580342258, now seen corresponding path program 1 times [2023-11-23 21:34:08,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:08,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82088619] [2023-11-23 21:34:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82088619] [2023-11-23 21:34:08,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82088619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:08,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:08,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:34:08,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783696182] [2023-11-23 21:34:08,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:08,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:08,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:34:08,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:34:08,805 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.336283185840708) internal successors, (151), 113 states have internal predecessors, (151), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2023-11-23 21:34:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:08,989 INFO L93 Difference]: Finished difference Result 379 states and 480 transitions. [2023-11-23 21:34:08,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 379 states and 480 transitions. [2023-11-23 21:34:09,013 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 244 [2023-11-23 21:34:09,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 379 states to 339 states and 440 transitions. [2023-11-23 21:34:09,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 339 [2023-11-23 21:34:09,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 339 [2023-11-23 21:34:09,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 339 states and 440 transitions. [2023-11-23 21:34:09,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:09,028 INFO L218 hiAutomatonCegarLoop]: Abstraction has 339 states and 440 transitions. [2023-11-23 21:34:09,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states and 440 transitions. [2023-11-23 21:34:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 159. [2023-11-23 21:34:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 158 states have internal predecessors, (207), 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) [2023-11-23 21:34:09,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 207 transitions. [2023-11-23 21:34:09,073 INFO L240 hiAutomatonCegarLoop]: Abstraction has 159 states and 207 transitions. [2023-11-23 21:34:09,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:34:09,078 INFO L428 stractBuchiCegarLoop]: Abstraction has 159 states and 207 transitions. [2023-11-23 21:34:09,079 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 21:34:09,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 207 transitions. [2023-11-23 21:34:09,081 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 113 [2023-11-23 21:34:09,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:34:09,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:34:09,082 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:09,082 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:09,083 INFO L748 eck$LassoCheckResult]: Stem: 545#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 546#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 540#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 541#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 599#valid_product_returnLabel#1 main_#t~ret30#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 555#L559 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 556#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; 586#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#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; 534#L810-2 [2023-11-23 21:34:09,083 INFO L750 eck$LassoCheckResult]: Loop: 534#L810-2 assume !false; 535#L811 assume test_~splverifierCounter~0#1 < 4; 589#L812 havoc test_#t~nondet43#1;test_~tmp~7#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 542#L820 assume !(0 != test_~tmp~7#1); 544#L820-2 havoc test_#t~nondet44#1;test_~tmp___0~1#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 603#L830 assume !(0 != test_~tmp___0~1#1); 604#L830-2 havoc test_#t~nondet45#1;test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 605#L840 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet46#1;test_~tmp___1~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 560#L848 assume !(0 != test_~tmp___1~0#1); 561#L848-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret27#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 563#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret27#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret27#1;havoc __utac_acc__Specification5_spec__2_#t~ret27#1; 595#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret27#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 596#L634 assume !(0 != ~pumpRunning~0); 600#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 522#L666 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 524#processEnvironment__wrappee__methaneQuery_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 567#L666-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 597#L641-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret28#1, __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 578#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret28#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret28#1;havoc __utac_acc__Specification5_spec__3_#t~ret28#1; 579#L446 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 591#L446-1 havoc __utac_acc__Specification5_spec__3_#t~ret28#1, __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 580#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 534#L810-2 [2023-11-23 21:34:09,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-23 21:34:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390710969] [2023-11-23 21:34:09,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:09,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,113 INFO L85 PathProgramCache]: Analyzing trace with hash -967290225, now seen corresponding path program 1 times [2023-11-23 21:34:09,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71981678] [2023-11-23 21:34:09,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:09,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,135 INFO L85 PathProgramCache]: Analyzing trace with hash -525078344, now seen corresponding path program 1 times [2023-11-23 21:34:09,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695327219] [2023-11-23 21:34:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:09,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:09,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:09,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695327219] [2023-11-23 21:34:09,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695327219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:09,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:09,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:09,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056005817] [2023-11-23 21:34:09,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:09,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:09,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:34:09,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:09,480 INFO L87 Difference]: Start difference. First operand 159 states and 207 transitions. cyclomatic complexity: 51 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2023-11-23 21:34:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:09,627 INFO L93 Difference]: Finished difference Result 427 states and 553 transitions. [2023-11-23 21:34:09,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 427 states and 553 transitions. [2023-11-23 21:34:09,635 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 283 [2023-11-23 21:34:09,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 427 states to 427 states and 553 transitions. [2023-11-23 21:34:09,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 427 [2023-11-23 21:34:09,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 427 [2023-11-23 21:34:09,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 427 states and 553 transitions. [2023-11-23 21:34:09,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:09,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 427 states and 553 transitions. [2023-11-23 21:34:09,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states and 553 transitions. [2023-11-23 21:34:09,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 308. [2023-11-23 21:34:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 308 states have (on average 1.2857142857142858) internal successors, (396), 307 states have internal predecessors, (396), 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) [2023-11-23 21:34:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 396 transitions. [2023-11-23 21:34:09,682 INFO L240 hiAutomatonCegarLoop]: Abstraction has 308 states and 396 transitions. [2023-11-23 21:34:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:34:09,683 INFO L428 stractBuchiCegarLoop]: Abstraction has 308 states and 396 transitions. [2023-11-23 21:34:09,683 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 21:34:09,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 396 transitions. [2023-11-23 21:34:09,686 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 224 [2023-11-23 21:34:09,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:34:09,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:34:09,687 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:09,688 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] [2023-11-23 21:34:09,688 INFO L748 eck$LassoCheckResult]: Stem: 1145#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1140#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1141#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1211#valid_product_returnLabel#1 main_#t~ret30#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 1157#L559 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1158#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; 1190#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#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; 1134#L810-2 [2023-11-23 21:34:09,688 INFO L750 eck$LassoCheckResult]: Loop: 1134#L810-2 assume !false; 1135#L811 assume test_~splverifierCounter~0#1 < 4; 1195#L812 havoc test_#t~nondet43#1;test_~tmp~7#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 1142#L820 assume !(0 != test_~tmp~7#1); 1144#L820-2 havoc test_#t~nondet44#1;test_~tmp___0~1#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1312#L830 assume !(0 != test_~tmp___0~1#1); 1309#L830-2 havoc test_#t~nondet45#1;test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1310#L840 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet46#1;test_~tmp___1~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1328#L848 assume !(0 != test_~tmp___1~0#1); 1174#L848-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret27#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 1327#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret27#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret27#1;havoc __utac_acc__Specification5_spec__2_#t~ret27#1; 1326#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret27#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1324#L634 assume !(0 != ~pumpRunning~0); 1216#L634-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1122#L666 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 1124#processEnvironment__wrappee__methaneQuery_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1170#L666-1 havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1227#L641-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret28#1, __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1308#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret28#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret28#1;havoc __utac_acc__Specification5_spec__3_#t~ret28#1; 1307#L446 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 1306#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret29#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 1248#L450 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1249#L446-1 havoc __utac_acc__Specification5_spec__3_#t~ret28#1, __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1184#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1134#L810-2 [2023-11-23 21:34:09,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,689 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-23 21:34:09,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604837270] [2023-11-23 21:34:09,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:09,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1873975318, now seen corresponding path program 1 times [2023-11-23 21:34:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941344792] [2023-11-23 21:34:09,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:09,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2110119981, now seen corresponding path program 1 times [2023-11-23 21:34:09,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786036303] [2023-11-23 21:34:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:09,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:10,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:11,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:34:11 BoogieIcfgContainer [2023-11-23 21:34:11,046 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 21:34:11,046 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:34:11,047 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:34:11,047 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:34:11,048 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:08" (3/4) ... [2023-11-23 21:34:11,049 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-23 21:34:11,120 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:34:11,120 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:34:11,121 INFO L158 Benchmark]: Toolchain (without parser) took 4504.85ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 132.3MB in the beginning and 176.3MB in the end (delta: -44.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:34:11,121 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 178.3MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:34:11,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.97ms. Allocated memory is still 178.3MB. Free memory was 132.3MB in the beginning and 113.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:34:11,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.37ms. Allocated memory is still 178.3MB. Free memory was 113.0MB in the beginning and 110.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:34:11,123 INFO L158 Benchmark]: Boogie Preprocessor took 84.24ms. Allocated memory is still 178.3MB. Free memory was 110.5MB in the beginning and 107.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:34:11,123 INFO L158 Benchmark]: RCFGBuilder took 604.10ms. Allocated memory is still 178.3MB. Free memory was 107.8MB in the beginning and 134.1MB in the end (delta: -26.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-23 21:34:11,124 INFO L158 Benchmark]: BuchiAutomizer took 3041.18ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 134.1MB in the beginning and 178.4MB in the end (delta: -44.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:34:11,125 INFO L158 Benchmark]: Witness Printer took 73.97ms. Allocated memory is still 216.0MB. Free memory was 178.4MB in the beginning and 176.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:34:11,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 178.3MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 606.97ms. Allocated memory is still 178.3MB. Free memory was 132.3MB in the beginning and 113.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.37ms. Allocated memory is still 178.3MB. Free memory was 113.0MB in the beginning and 110.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.24ms. Allocated memory is still 178.3MB. Free memory was 110.5MB in the beginning and 107.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 604.10ms. Allocated memory is still 178.3MB. Free memory was 107.8MB in the beginning and 134.1MB in the end (delta: -26.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3041.18ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 134.1MB in the beginning and 178.4MB in the end (delta: -44.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 73.97ms. Allocated memory is still 216.0MB. Free memory was 178.4MB in the beginning and 176.3MB in the end (delta: 2.1MB). 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,"Specification5_spec.i","") [415] - GenericResultAtLocation [Line: 467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [467] - GenericResultAtLocation [Line: 572]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [572] - GenericResultAtLocation [Line: 607]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [607] - GenericResultAtLocation [Line: 616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [616] - GenericResultAtLocation [Line: 799]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [799] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [868] * 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 308 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 299 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, 881 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 881 mSDsluCounter, 1689 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1382 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 307 mSDtfsCounter, 129 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: 810]: 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; [L419] int switchedOnBeforeTS ; [L468] int cleanupTimeShifts = 4; [L624] int pumpRunning = 0; [L625] int systemActive = 1; [L869] int waterLevel = 1; [L870] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L550] int retValue_acc ; [L551] int tmp ; [L555] FCALL select_helpers() [L556] FCALL select_features() [L557] CALL, EXPR valid_product() [L599] int retValue_acc ; [L602] retValue_acc = 1 [L603] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L557] RET, EXPR valid_product() [L557] tmp = valid_product() [L559] COND TRUE \read(tmp) [L561] FCALL setup() [L562] CALL runTest() [L540] CALL __utac_acc__Specification5_spec__1() [L424] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L540] RET __utac_acc__Specification5_spec__1() [L541] CALL test() [L801] int splverifierCounter ; [L802] int tmp ; [L803] int tmp___0 ; [L804] int tmp___1 ; [L805] int tmp___2 ; [L808] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L810] COND TRUE 1 [L812] COND TRUE splverifierCounter < 4 [L818] tmp = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp)) [L828] tmp___0 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___0)) [L838] tmp___2 = __VERIFIER_nondet_int() [L840] COND FALSE !(\read(tmp___2)) [L846] tmp___1 = __VERIFIER_nondet_int() [L848] COND FALSE !(\read(tmp___1)) [L857] CALL timeShift() [L632] CALL __utac_acc__Specification5_spec__2() [L433] CALL, EXPR isPumpRunning() [L732] int retValue_acc ; [L735] retValue_acc = pumpRunning [L736] return (retValue_acc); [L433] RET, EXPR isPumpRunning() [L433] switchedOnBeforeTS = isPumpRunning() [L632] RET __utac_acc__Specification5_spec__2() [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L663] int tmp ; [L666] COND FALSE !(\read(pumpRunning)) [L681] FCALL processEnvironment__wrappee__methaneQuery() [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification5_spec__3() [L439] int tmp ; [L440] int tmp___0 ; [L444] CALL, EXPR getWaterLevel() [L940] int retValue_acc ; [L943] retValue_acc = waterLevel [L944] return (retValue_acc); [L444] RET, EXPR getWaterLevel() [L444] tmp = getWaterLevel() [L446] COND TRUE tmp != 2 [L448] CALL, EXPR isPumpRunning() [L732] int retValue_acc ; [L735] retValue_acc = pumpRunning [L736] return (retValue_acc); [L448] RET, EXPR isPumpRunning() [L448] tmp___0 = isPumpRunning() [L450] COND FALSE !(\read(tmp___0)) [L649] RET __utac_acc__Specification5_spec__3() [L857] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 810]: 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; [L419] int switchedOnBeforeTS ; [L468] int cleanupTimeShifts = 4; [L624] int pumpRunning = 0; [L625] int systemActive = 1; [L869] int waterLevel = 1; [L870] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L550] int retValue_acc ; [L551] int tmp ; [L555] FCALL select_helpers() [L556] FCALL select_features() [L557] CALL, EXPR valid_product() [L599] int retValue_acc ; [L602] retValue_acc = 1 [L603] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L557] RET, EXPR valid_product() [L557] tmp = valid_product() [L559] COND TRUE \read(tmp) [L561] FCALL setup() [L562] CALL runTest() [L540] CALL __utac_acc__Specification5_spec__1() [L424] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L540] RET __utac_acc__Specification5_spec__1() [L541] CALL test() [L801] int splverifierCounter ; [L802] int tmp ; [L803] int tmp___0 ; [L804] int tmp___1 ; [L805] int tmp___2 ; [L808] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L810] COND TRUE 1 [L812] COND TRUE splverifierCounter < 4 [L818] tmp = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp)) [L828] tmp___0 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___0)) [L838] tmp___2 = __VERIFIER_nondet_int() [L840] COND FALSE !(\read(tmp___2)) [L846] tmp___1 = __VERIFIER_nondet_int() [L848] COND FALSE !(\read(tmp___1)) [L857] CALL timeShift() [L632] CALL __utac_acc__Specification5_spec__2() [L433] CALL, EXPR isPumpRunning() [L732] int retValue_acc ; [L735] retValue_acc = pumpRunning [L736] return (retValue_acc); [L433] RET, EXPR isPumpRunning() [L433] switchedOnBeforeTS = isPumpRunning() [L632] RET __utac_acc__Specification5_spec__2() [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L663] int tmp ; [L666] COND FALSE !(\read(pumpRunning)) [L681] FCALL processEnvironment__wrappee__methaneQuery() [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification5_spec__3() [L439] int tmp ; [L440] int tmp___0 ; [L444] CALL, EXPR getWaterLevel() [L940] int retValue_acc ; [L943] retValue_acc = waterLevel [L944] return (retValue_acc); [L444] RET, EXPR getWaterLevel() [L444] tmp = getWaterLevel() [L446] COND TRUE tmp != 2 [L448] CALL, EXPR isPumpRunning() [L732] int retValue_acc ; [L735] retValue_acc = pumpRunning [L736] return (retValue_acc); [L448] RET, EXPR isPumpRunning() [L448] tmp___0 = isPumpRunning() [L450] COND FALSE !(\read(tmp___0)) [L649] RET __utac_acc__Specification5_spec__3() [L857] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:34:11,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f5a34c-1435-46b7-a441-8b0fddfc88d1/bin/uautomizer-verify-zZY32mL2XJ/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)