./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1 --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 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:24:37,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:24:38,039 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 11:24:38,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:24:38,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:24:38,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:24:38,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:24:38,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:24:38,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:24:38,064 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:24:38,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:24:38,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:24:38,064 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:24:38,064 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 11:24:38,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:24:38,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:24:38,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:24:38,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:24:38,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:24:38,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:24:38,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 11:24:38,067 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 11:24:38,067 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1 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 -> 4d13ffd2557e7d7902d8a5eac414f9fb7393252d85c14855e86000741be6847f [2024-12-02 11:24:38,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:24:38,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:24:38,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:24:38,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:24:38,281 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:24:38,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2024-12-02 11:24:40,896 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/data/b0de131c1/53f4bd469dd949e4ad77eddb2b8d27b6/FLAG67a1d9afa [2024-12-02 11:24:41,156 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:24:41,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2024-12-02 11:24:41,167 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/data/b0de131c1/53f4bd469dd949e4ad77eddb2b8d27b6/FLAG67a1d9afa [2024-12-02 11:24:41,475 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/data/b0de131c1/53f4bd469dd949e4ad77eddb2b8d27b6 [2024-12-02 11:24:41,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:24:41,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:24:41,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:24:41,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:24:41,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:24:41,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45cef56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41, skipping insertion in model container [2024-12-02 11:24:41,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,515 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:24:41,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:24:41,748 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:24:41,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-12-02 11:24:41,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [58] [2024-12-02 11:24:41,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [95] [2024-12-02 11:24:41,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [461] [2024-12-02 11:24:41,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [570] [2024-12-02 11:24:41,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [608] [2024-12-02 11:24:41,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] [2024-12-02 11:24:41,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [929] [2024-12-02 11:24:41,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:24:41,820 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:24:41,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41 WrapperNode [2024-12-02 11:24:41,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:24:41,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:24:41,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:24:41,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:24:41,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,876 INFO L138 Inliner]: procedures = 58, calls = 107, calls flagged for inlining = 60, calls inlined = 180, statements flattened = 1237 [2024-12-02 11:24:41,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:24:41,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:24:41,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:24:41,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:24:41,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,908 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:24:41,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,923 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:24:41,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:24:41,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:24:41,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:24:41,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (1/1) ... [2024-12-02 11:24:41,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 11:24:41,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:41,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 11:24:41,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 11:24:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:24:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:24:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:24:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:24:42,061 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:24:42,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:24:42,659 INFO L? ?]: Removed 319 outVars from TransFormulas that were not future-live. [2024-12-02 11:24:42,659 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:24:42,675 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:24:42,675 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 11:24:42,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:24:42 BoogieIcfgContainer [2024-12-02 11:24:42,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:24:42,676 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 11:24:42,676 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 11:24:42,681 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 11:24:42,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:24:42,681 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 11:24:41" (1/3) ... [2024-12-02 11:24:42,682 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49f55539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:24:42, skipping insertion in model container [2024-12-02 11:24:42,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:24:42,683 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:41" (2/3) ... [2024-12-02 11:24:42,683 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49f55539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 11:24:42, skipping insertion in model container [2024-12-02 11:24:42,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 11:24:42,683 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:24:42" (3/3) ... [2024-12-02 11:24:42,684 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2024-12-02 11:24:42,725 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 11:24:42,726 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 11:24:42,726 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 11:24:42,726 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 11:24:42,726 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 11:24:42,726 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 11:24:42,726 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 11:24:42,726 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 11:24:42,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 326 states, 325 states have (on average 1.353846153846154) internal successors, (440), 325 states have internal predecessors, (440), 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) [2024-12-02 11:24:42,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2024-12-02 11:24:42,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:24:42,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:24:42,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:42,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:42,761 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 11:24:42,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 326 states, 325 states have (on average 1.353846153846154) internal successors, (440), 325 states have internal predecessors, (440), 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) [2024-12-02 11:24:42,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2024-12-02 11:24:42,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:24:42,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:24:42,771 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:42,771 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:42,776 INFO L747 eck$LassoCheckResult]: Stem: "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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1;" "assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 11:24:42,776 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 11:24:42,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-12-02 11:24:42,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:42,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444917543] [2024-12-02 11:24:42,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:42,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:42,860 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:42,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:24:42,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:42,892 INFO L85 PathProgramCache]: Analyzing trace with hash -515467681, now seen corresponding path program 1 times [2024-12-02 11:24:42,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:42,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805487188] [2024-12-02 11:24:42,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:42,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:42,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:24:42,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805487188] [2024-12-02 11:24:42,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805487188] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:24:42,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77642573] [2024-12-02 11:24:42,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:42,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:24:42,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:42,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:24:42,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:24:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:43,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:24:43,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:24:43,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:24:43,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77642573] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:24:43,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:24:43,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 11:24:43,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849645655] [2024-12-02 11:24:43,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:24:43,069 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 11:24:43,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:24:43,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:24:43,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:43,097 INFO L87 Difference]: Start difference. First operand has 326 states, 325 states have (on average 1.353846153846154) internal successors, (440), 325 states have internal predecessors, (440), 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 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-12-02 11:24:43,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:43,141 INFO L93 Difference]: Finished difference Result 320 states and 424 transitions. [2024-12-02 11:24:43,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 424 transitions. [2024-12-02 11:24:43,146 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 207 [2024-12-02 11:24:43,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 310 states and 413 transitions. [2024-12-02 11:24:43,155 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 310 [2024-12-02 11:24:43,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 310 [2024-12-02 11:24:43,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 310 states and 413 transitions. [2024-12-02 11:24:43,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 11:24:43,158 INFO L218 hiAutomatonCegarLoop]: Abstraction has 310 states and 413 transitions. [2024-12-02 11:24:43,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states and 413 transitions. [2024-12-02 11:24:43,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2024-12-02 11:24:43,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 310 states have (on average 1.332258064516129) internal successors, (413), 309 states have internal predecessors, (413), 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) [2024-12-02 11:24:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 413 transitions. [2024-12-02 11:24:43,191 INFO L240 hiAutomatonCegarLoop]: Abstraction has 310 states and 413 transitions. [2024-12-02 11:24:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:24:43,195 INFO L425 stractBuchiCegarLoop]: Abstraction has 310 states and 413 transitions. [2024-12-02 11:24:43,195 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 11:24:43,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 310 states and 413 transitions. [2024-12-02 11:24:43,197 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 207 [2024-12-02 11:24:43,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:24:43,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:24:43,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:43,198 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] [2024-12-02 11:24:43,198 INFO L747 eck$LassoCheckResult]: Stem: "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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1;" "assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 11:24:43,199 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet54#1;test_~tmp___1~1#1 := test_#t~nondet54#1;havoc test_#t~nondet54#1;" "assume 0 != test_~tmp___1~1#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~9#1;havoc isMethaneAlarm_~retValue_acc~9#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~9#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1;" "processEnvironment_#t~ret38#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~9#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1;" "assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 11:24:43,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-12-02 11:24:43,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:43,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511440160] [2024-12-02 11:24:43,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:43,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:43,212 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:43,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:24:43,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:43,224 INFO L85 PathProgramCache]: Analyzing trace with hash 122387945, now seen corresponding path program 1 times [2024-12-02 11:24:43,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:43,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310015776] [2024-12-02 11:24:43,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:43,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:43,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:24:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310015776] [2024-12-02 11:24:43,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310015776] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:24:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843931338] [2024-12-02 11:24:43,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:43,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:24:43,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:43,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:24:43,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:24:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:43,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:24:43,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:24:43,311 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:24:43,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843931338] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:24:43,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:24:43,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 11:24:43,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937418293] [2024-12-02 11:24:43,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:24:43,319 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 11:24:43,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:24:43,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:24:43,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:43,320 INFO L87 Difference]: Start difference. First operand 310 states and 413 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:24:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:43,438 INFO L93 Difference]: Finished difference Result 322 states and 408 transitions. [2024-12-02 11:24:43,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 322 states and 408 transitions. [2024-12-02 11:24:43,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 220 [2024-12-02 11:24:43,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 322 states to 322 states and 408 transitions. [2024-12-02 11:24:43,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 322 [2024-12-02 11:24:43,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 322 [2024-12-02 11:24:43,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 322 states and 408 transitions. [2024-12-02 11:24:43,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 11:24:43,446 INFO L218 hiAutomatonCegarLoop]: Abstraction has 322 states and 408 transitions. [2024-12-02 11:24:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states and 408 transitions. [2024-12-02 11:24:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-12-02 11:24:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 322 states have (on average 1.2670807453416149) internal successors, (408), 321 states have internal predecessors, (408), 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) [2024-12-02 11:24:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 408 transitions. [2024-12-02 11:24:43,476 INFO L240 hiAutomatonCegarLoop]: Abstraction has 322 states and 408 transitions. [2024-12-02 11:24:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:24:43,477 INFO L425 stractBuchiCegarLoop]: Abstraction has 322 states and 408 transitions. [2024-12-02 11:24:43,477 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 11:24:43,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 322 states and 408 transitions. [2024-12-02 11:24:43,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 220 [2024-12-02 11:24:43,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:24:43,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:24:43,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:43,480 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] [2024-12-02 11:24:43,480 INFO L747 eck$LassoCheckResult]: Stem: "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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1;" "assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 11:24:43,480 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1;" "isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 11:24:43,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:43,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-12-02 11:24:43,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:43,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601728744] [2024-12-02 11:24:43,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:43,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:43,491 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:43,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:24:43,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:43,500 INFO L85 PathProgramCache]: Analyzing trace with hash 680635423, now seen corresponding path program 1 times [2024-12-02 11:24:43,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:43,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970342995] [2024-12-02 11:24:43,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:43,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:43,513 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:43,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:24:43,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:43,524 INFO L85 PathProgramCache]: Analyzing trace with hash 554900699, now seen corresponding path program 1 times [2024-12-02 11:24:43,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:43,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375601372] [2024-12-02 11:24:43,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:43,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:43,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 11:24:43,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375601372] [2024-12-02 11:24:43,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375601372] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:24:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317099270] [2024-12-02 11:24:43,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:43,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:24:43,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:43,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:24:43,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:24:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:43,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 11:24:43,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:24:43,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:24:43,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317099270] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:24:43,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:24:43,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 11:24:43,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792580482] [2024-12-02 11:24:43,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:24:43,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 11:24:43,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:24:43,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:24:43,990 INFO L87 Difference]: Start difference. First operand 322 states and 408 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-12-02 11:24:44,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:44,141 INFO L93 Difference]: Finished difference Result 637 states and 801 transitions. [2024-12-02 11:24:44,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 637 states and 801 transitions. [2024-12-02 11:24:44,145 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 440 [2024-12-02 11:24:44,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 637 states to 637 states and 801 transitions. [2024-12-02 11:24:44,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 637 [2024-12-02 11:24:44,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 637 [2024-12-02 11:24:44,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 637 states and 801 transitions. [2024-12-02 11:24:44,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 11:24:44,150 INFO L218 hiAutomatonCegarLoop]: Abstraction has 637 states and 801 transitions. [2024-12-02 11:24:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states and 801 transitions. [2024-12-02 11:24:44,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2024-12-02 11:24:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 637 states have (on average 1.2574568288854002) internal successors, (801), 636 states have internal predecessors, (801), 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) [2024-12-02 11:24:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 801 transitions. [2024-12-02 11:24:44,169 INFO L240 hiAutomatonCegarLoop]: Abstraction has 637 states and 801 transitions. [2024-12-02 11:24:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:24:44,170 INFO L425 stractBuchiCegarLoop]: Abstraction has 637 states and 801 transitions. [2024-12-02 11:24:44,171 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 11:24:44,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 637 states and 801 transitions. [2024-12-02 11:24:44,173 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 440 [2024-12-02 11:24:44,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 11:24:44,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 11:24:44,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:44,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:44,175 INFO L747 eck$LassoCheckResult]: Stem: "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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret55#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret55#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret55#1;havoc main_#t~ret55#1;" "assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 11:24:44,175 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1;" "isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 11:24:44,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:44,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-12-02 11:24:44,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:44,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708756864] [2024-12-02 11:24:44,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:44,183 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:44,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:24:44,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:44,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1256811828, now seen corresponding path program 1 times [2024-12-02 11:24:44,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:44,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444239952] [2024-12-02 11:24:44,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:44,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:44,198 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:44,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:24:44,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:44,206 INFO L85 PathProgramCache]: Analyzing trace with hash 684826352, now seen corresponding path program 1 times [2024-12-02 11:24:44,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 11:24:44,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056811580] [2024-12-02 11:24:44,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:44,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:44,219 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:44,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 11:24:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:45,088 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:24:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:24:45,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 11:24:45 BoogieIcfgContainer [2024-12-02 11:24:45,139 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 11:24:45,139 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:24:45,139 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:24:45,139 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:24:45,140 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:24:42" (3/4) ... [2024-12-02 11:24:45,142 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 11:24:45,186 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:24:45,186 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:24:45,187 INFO L158 Benchmark]: Toolchain (without parser) took 3707.98ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 117.6MB in the beginning and 229.7MB in the end (delta: -112.1MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2024-12-02 11:24:45,188 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:24:45,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.50ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 98.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:24:45,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.39ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 94.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:24:45,189 INFO L158 Benchmark]: Boogie Preprocessor took 65.08ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 88.9MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:24:45,189 INFO L158 Benchmark]: RCFGBuilder took 732.87ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 96.0MB in the end (delta: -7.1MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-12-02 11:24:45,189 INFO L158 Benchmark]: BuchiAutomizer took 2462.44ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 96.0MB in the beginning and 232.2MB in the end (delta: -136.2MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-12-02 11:24:45,190 INFO L158 Benchmark]: Witness Printer took 47.30ms. Allocated memory is still 310.4MB. Free memory was 232.2MB in the beginning and 229.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:24:45,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.50ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 98.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.39ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 94.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.08ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 88.9MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 732.87ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 96.0MB in the end (delta: -7.1MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2462.44ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 96.0MB in the beginning and 232.2MB in the end (delta: -136.2MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Witness Printer took 47.30ms. Allocated memory is still 310.4MB. Free memory was 232.2MB in the beginning and 229.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [58] - GenericResultAtLocation [Line: 95]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [95] - GenericResultAtLocation [Line: 461]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [461] - GenericResultAtLocation [Line: 570]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [570] - GenericResultAtLocation [Line: 608]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [608] - GenericResultAtLocation [Line: 861]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [861] - GenericResultAtLocation [Line: 929]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [929] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 637 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 927 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 927 mSDsluCounter, 1980 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 979 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 1001 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 875]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L265] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L468] int waterLevel = 1; [L469] int methaneLevelCritical = 0; [L614] int pumpRunning = 0; [L615] int systemActive = 1; [L930] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1003] int retValue_acc ; [L1004] int tmp ; [L1008] FCALL select_helpers() [L1009] FCALL select_features() [L1010] CALL, EXPR valid_product() [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1010] RET, EXPR valid_product() [L1010] tmp = valid_product() [L1012] COND TRUE \read(tmp) [L1014] FCALL setup() [L1015] CALL runTest() [L997] CALL test() [L864] int splverifierCounter ; [L865] int tmp ; [L866] int tmp___0 ; [L867] int tmp___1 ; [L868] int tmp___2 ; [L871] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L875] COND TRUE splverifierCounter < 4 [L881] tmp = __VERIFIER_nondet_int() [L883] COND FALSE !(\read(tmp)) [L891] tmp___0 = __VERIFIER_nondet_int() [L893] COND FALSE !(\read(tmp___0)) [L901] tmp___2 = __VERIFIER_nondet_int() [L903] COND TRUE \read(tmp___2) [L905] CALL startSystem() [L857] systemActive = 1 [L905] RET startSystem() [L918] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] CALL processEnvironment() [L702] int tmp ; [L705] COND FALSE !(\read(pumpRunning)) [L720] CALL processEnvironment__wrappee__methaneQuery() [L676] int tmp ; [L679] COND FALSE !(\read(pumpRunning)) [L694] CALL processEnvironment__wrappee__highWaterSensor() [L650] int tmp ; [L653] COND TRUE ! pumpRunning [L655] CALL, EXPR isHighWaterLevel() [L816] int retValue_acc ; [L817] int tmp ; [L818] int tmp___0 ; [L822] CALL, EXPR isHighWaterSensorDry() [L548] int retValue_acc ; [L551] COND TRUE waterLevel < 2 [L552] retValue_acc = 1 [L553] return (retValue_acc); [L822] RET, EXPR isHighWaterSensorDry() [L822] tmp = isHighWaterSensorDry() [L824] COND TRUE \read(tmp) [L825] tmp___0 = 0 [L829] retValue_acc = tmp___0 [L830] return (retValue_acc); [L655] RET, EXPR isHighWaterLevel() [L655] tmp = isHighWaterLevel() [L657] COND FALSE !(\read(tmp)) [L663] FCALL processEnvironment__wrappee__base() [L694] RET processEnvironment__wrappee__highWaterSensor() [L720] RET processEnvironment__wrappee__methaneQuery() [L630] RET processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L63] int tmp ; [L64] int tmp___0 ; [L65] int tmp___1 ; [L69] CALL, EXPR isMethaneLevelCritical() [L507] int retValue_acc ; [L510] retValue_acc = methaneLevelCritical [L511] return (retValue_acc); [L69] RET, EXPR isMethaneLevelCritical() [L69] tmp = isMethaneLevelCritical() [L71] COND FALSE !(\read(tmp)) [L75] CALL, EXPR getWaterLevel() [L539] int retValue_acc ; [L542] retValue_acc = waterLevel [L543] return (retValue_acc); [L75] RET, EXPR getWaterLevel() [L75] tmp___0 = getWaterLevel() [L77] COND FALSE !(tmp___0 == 2) [L636] RET __utac_acc__Specification3_spec__1() [L918] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 875]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L265] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L468] int waterLevel = 1; [L469] int methaneLevelCritical = 0; [L614] int pumpRunning = 0; [L615] int systemActive = 1; [L930] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1003] int retValue_acc ; [L1004] int tmp ; [L1008] FCALL select_helpers() [L1009] FCALL select_features() [L1010] CALL, EXPR valid_product() [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1010] RET, EXPR valid_product() [L1010] tmp = valid_product() [L1012] COND TRUE \read(tmp) [L1014] FCALL setup() [L1015] CALL runTest() [L997] CALL test() [L864] int splverifierCounter ; [L865] int tmp ; [L866] int tmp___0 ; [L867] int tmp___1 ; [L868] int tmp___2 ; [L871] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L875] COND TRUE splverifierCounter < 4 [L881] tmp = __VERIFIER_nondet_int() [L883] COND FALSE !(\read(tmp)) [L891] tmp___0 = __VERIFIER_nondet_int() [L893] COND FALSE !(\read(tmp___0)) [L901] tmp___2 = __VERIFIER_nondet_int() [L903] COND TRUE \read(tmp___2) [L905] CALL startSystem() [L857] systemActive = 1 [L905] RET startSystem() [L918] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] CALL processEnvironment() [L702] int tmp ; [L705] COND FALSE !(\read(pumpRunning)) [L720] CALL processEnvironment__wrappee__methaneQuery() [L676] int tmp ; [L679] COND FALSE !(\read(pumpRunning)) [L694] CALL processEnvironment__wrappee__highWaterSensor() [L650] int tmp ; [L653] COND TRUE ! pumpRunning [L655] CALL, EXPR isHighWaterLevel() [L816] int retValue_acc ; [L817] int tmp ; [L818] int tmp___0 ; [L822] CALL, EXPR isHighWaterSensorDry() [L548] int retValue_acc ; [L551] COND TRUE waterLevel < 2 [L552] retValue_acc = 1 [L553] return (retValue_acc); [L822] RET, EXPR isHighWaterSensorDry() [L822] tmp = isHighWaterSensorDry() [L824] COND TRUE \read(tmp) [L825] tmp___0 = 0 [L829] retValue_acc = tmp___0 [L830] return (retValue_acc); [L655] RET, EXPR isHighWaterLevel() [L655] tmp = isHighWaterLevel() [L657] COND FALSE !(\read(tmp)) [L663] FCALL processEnvironment__wrappee__base() [L694] RET processEnvironment__wrappee__highWaterSensor() [L720] RET processEnvironment__wrappee__methaneQuery() [L630] RET processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L63] int tmp ; [L64] int tmp___0 ; [L65] int tmp___1 ; [L69] CALL, EXPR isMethaneLevelCritical() [L507] int retValue_acc ; [L510] retValue_acc = methaneLevelCritical [L511] return (retValue_acc); [L69] RET, EXPR isMethaneLevelCritical() [L69] tmp = isMethaneLevelCritical() [L71] COND FALSE !(\read(tmp)) [L75] CALL, EXPR getWaterLevel() [L539] int retValue_acc ; [L542] retValue_acc = waterLevel [L543] return (retValue_acc); [L75] RET, EXPR getWaterLevel() [L75] tmp___0 = getWaterLevel() [L77] COND FALSE !(tmp___0 == 2) [L636] RET __utac_acc__Specification3_spec__1() [L918] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 11:24:45,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:24:45,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:24:45,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:24:45,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ac7db6-c676-40ac-8576-84f10aa5e068/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)