./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34b47c00ac265c7154b048b065075686f0b0d02157935b615817b802464c404c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:30:21,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:30:21,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:30:21,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:30:21,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:30:21,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:30:21,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:30:21,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:30:21,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:30:21,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:30:21,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:30:21,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:30:21,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:30:21,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:30:21,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:30:21,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:30:21,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:30:21,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:30:21,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:30:21,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:30:21,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:30:21,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:30:21,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:30:21,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:30:21,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:30:21,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:30:21,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:30:21,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:30:21,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:30:21,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:30:21,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:30:21,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:30:21,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:30:21,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:30:21,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:30:21,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:30:21,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:30:21,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:30:21,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:30:21,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:30:21,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:30:21,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-21 16:30:21,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:30:21,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:30:21,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:30:21,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:30:21,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:30:21,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:30:21,629 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:30:21,629 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 16:30:21,630 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 16:30:21,630 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 16:30:21,631 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 16:30:21,631 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 16:30:21,631 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 16:30:21,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:30:21,632 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:30:21,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:30:21,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:30:21,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:30:21,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:30:21,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 16:30:21,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 16:30:21,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 16:30:21,633 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:30:21,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:30:21,634 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 16:30:21,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:30:21,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 16:30:21,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:30:21,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:30:21,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:30:21,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:30:21,637 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 16:30:21,637 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34b47c00ac265c7154b048b065075686f0b0d02157935b615817b802464c404c [2022-11-21 16:30:21,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:30:21,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:30:21,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:30:21,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:30:21,991 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:30:21,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2022-11-21 16:30:25,287 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:30:25,637 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:30:25,638 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2022-11-21 16:30:25,649 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/data/720756812/e577f82d4e324330980bf0917e1ac18f/FLAGac43d5d20 [2022-11-21 16:30:25,663 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/data/720756812/e577f82d4e324330980bf0917e1ac18f [2022-11-21 16:30:25,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:30:25,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:30:25,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:25,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:30:25,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:30:25,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:25" (1/1) ... [2022-11-21 16:30:25,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb30639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:25, skipping insertion in model container [2022-11-21 16:30:25,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:25" (1/1) ... [2022-11-21 16:30:25,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:30:25,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:30:26,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c[19180,19193] [2022-11-21 16:30:26,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:26,072 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:30:26,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c[19180,19193] [2022-11-21 16:30:26,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:26,211 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:30:26,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26 WrapperNode [2022-11-21 16:30:26,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:26,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:26,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:30:26,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:30:26,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,334 INFO L138 Inliner]: procedures = 60, calls = 108, calls flagged for inlining = 61, calls inlined = 181, statements flattened = 1240 [2022-11-21 16:30:26,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:26,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:30:26,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:30:26,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:30:26,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,397 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:30:26,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:30:26,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:30:26,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:30:26,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (1/1) ... [2022-11-21 16:30:26,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:30:26,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:30:26,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:30:26,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 16:30:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:30:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:30:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:30:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:30:26,621 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:30:26,623 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:30:27,378 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:30:27,388 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:30:27,397 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:30:27,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:27 BoogieIcfgContainer [2022-11-21 16:30:27,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:30:27,403 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 16:30:27,403 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 16:30:27,407 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 16:30:27,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:30:27,408 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 04:30:25" (1/3) ... [2022-11-21 16:30:27,410 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c858534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:30:27, skipping insertion in model container [2022-11-21 16:30:27,410 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:30:27,410 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:26" (2/3) ... [2022-11-21 16:30:27,412 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c858534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:30:27, skipping insertion in model container [2022-11-21 16:30:27,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:30:27,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:27" (3/3) ... [2022-11-21 16:30:27,416 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2022-11-21 16:30:27,490 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 16:30:27,490 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 16:30:27,490 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 16:30:27,490 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 16:30:27,490 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 16:30:27,490 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 16:30:27,490 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 16:30:27,491 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 16:30:27,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.350609756097561) internal successors, (443), 328 states have internal predecessors, (443), 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) [2022-11-21 16:30:27,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2022-11-21 16:30:27,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:30:27,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:30:27,538 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:27,538 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] [2022-11-21 16:30:27,538 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 16:30:27,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.350609756097561) internal successors, (443), 328 states have internal predecessors, (443), 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) [2022-11-21 16:30:27,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2022-11-21 16:30:27,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:30:27,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:30:27,553 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:27,553 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] [2022-11-21 16:30:27,559 INFO L748 eck$LassoCheckResult]: Stem: 316#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 205#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 49#L1035true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 157#L1028true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 148#L1043true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 114#L990true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 285#L963true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 268#L322true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 257#L378-2true [2022-11-21 16:30:27,559 INFO L750 eck$LassoCheckResult]: Loop: 257#L378-2true assume !false; 131#L379true assume test_~splverifierCounter~0#1 < 4; 247#L380true test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 31#L388true assume !(0 != test_~tmp~7#1); 179#L388-2true test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 305#L398true assume !(0 != test_~tmp___0~3#1); 188#L398-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 291#L408true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 248#L310true assume { :end_inline_startSystem } true; 138#L416-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 117#L227true __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 193#L332true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 126#L73true assume !(0 != ~pumpRunning~0); 45#L73-2true assume !(0 != ~systemActive~0); 307#L80-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 112#L876true __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 274#L343true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 63#L343-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 153#L90true assume { :end_inline_timeShift } true; 257#L378-2true [2022-11-21 16:30:27,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-21 16:30:27,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:27,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626372218] [2022-11-21 16:30:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:27,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:27,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:27,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:30:27,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1858586251, now seen corresponding path program 1 times [2022-11-21 16:30:27,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:27,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968576921] [2022-11-21 16:30:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:27,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:27,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:27,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968576921] [2022-11-21 16:30:27,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968576921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:27,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:27,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:30:27,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176353690] [2022-11-21 16:30:27,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:27,901 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 16:30:27,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:27,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:27,939 INFO L87 Difference]: Start difference. First operand has 329 states, 328 states have (on average 1.350609756097561) internal successors, (443), 328 states have internal predecessors, (443), 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 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-21 16:30:28,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:28,003 INFO L93 Difference]: Finished difference Result 326 states and 430 transitions. [2022-11-21 16:30:28,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 430 transitions. [2022-11-21 16:30:28,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2022-11-21 16:30:28,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 316 states and 419 transitions. [2022-11-21 16:30:28,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2022-11-21 16:30:28,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2022-11-21 16:30:28,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 419 transitions. [2022-11-21 16:30:28,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:28,024 INFO L218 hiAutomatonCegarLoop]: Abstraction has 316 states and 419 transitions. [2022-11-21 16:30:28,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 419 transitions. [2022-11-21 16:30:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-11-21 16:30:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 316 states have (on average 1.3259493670886076) internal successors, (419), 315 states have internal predecessors, (419), 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) [2022-11-21 16:30:28,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 419 transitions. [2022-11-21 16:30:28,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 316 states and 419 transitions. [2022-11-21 16:30:28,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:28,077 INFO L428 stractBuchiCegarLoop]: Abstraction has 316 states and 419 transitions. [2022-11-21 16:30:28,078 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 16:30:28,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 316 states and 419 transitions. [2022-11-21 16:30:28,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2022-11-21 16:30:28,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:30:28,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:30:28,082 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:28,083 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] [2022-11-21 16:30:28,083 INFO L748 eck$LassoCheckResult]: Stem: 976#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 936#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 754#L1035 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 755#L1028 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 892#L1043 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 852#L990 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 853#L963 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 963#L322 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 895#L378-2 [2022-11-21 16:30:28,084 INFO L750 eck$LassoCheckResult]: Loop: 895#L378-2 assume !false; 874#L379 assume test_~splverifierCounter~0#1 < 4; 875#L380 test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 722#L388 assume !(0 != test_~tmp~7#1); 724#L388-2 test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 920#L398 assume !(0 != test_~tmp___0~3#1); 671#L398-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 928#L408 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 715#L416 assume 0 != test_~tmp___1~0#1; 716#L416-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 854#L227 __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 855#L332 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 868#L73 assume !(0 != ~pumpRunning~0); 749#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 676#L157 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 677#L844 isMethaneAlarm_#t~ret8#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret8#1;havoc isMethaneAlarm_#t~ret8#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 826#L218 processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; 915#L161 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 916#L208 assume { :end_inline_deactivatePump } true; 710#L157-1 assume { :end_inline_processEnvironment } true; 711#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 850#L876 __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 851#L343 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 778#L343-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 779#L90 assume { :end_inline_timeShift } true; 895#L378-2 [2022-11-21 16:30:28,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:28,084 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-21 16:30:28,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:28,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706513135] [2022-11-21 16:30:28,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:28,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:30:28,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:28,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1612952875, now seen corresponding path program 1 times [2022-11-21 16:30:28,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:28,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063621024] [2022-11-21 16:30:28,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:28,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:28,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:28,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063621024] [2022-11-21 16:30:28,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063621024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:28,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:28,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:30:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44849971] [2022-11-21 16:30:28,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:28,163 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 16:30:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:28,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:28,164 INFO L87 Difference]: Start difference. First operand 316 states and 419 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:28,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:28,316 INFO L93 Difference]: Finished difference Result 333 states and 419 transitions. [2022-11-21 16:30:28,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 333 states and 419 transitions. [2022-11-21 16:30:28,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 228 [2022-11-21 16:30:28,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 333 states to 333 states and 419 transitions. [2022-11-21 16:30:28,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 333 [2022-11-21 16:30:28,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 333 [2022-11-21 16:30:28,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 333 states and 419 transitions. [2022-11-21 16:30:28,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:28,331 INFO L218 hiAutomatonCegarLoop]: Abstraction has 333 states and 419 transitions. [2022-11-21 16:30:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states and 419 transitions. [2022-11-21 16:30:28,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-11-21 16:30:28,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 333 states have (on average 1.2582582582582582) internal successors, (419), 332 states have internal predecessors, (419), 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) [2022-11-21 16:30:28,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 419 transitions. [2022-11-21 16:30:28,350 INFO L240 hiAutomatonCegarLoop]: Abstraction has 333 states and 419 transitions. [2022-11-21 16:30:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:28,351 INFO L428 stractBuchiCegarLoop]: Abstraction has 333 states and 419 transitions. [2022-11-21 16:30:28,352 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 16:30:28,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 333 states and 419 transitions. [2022-11-21 16:30:28,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 228 [2022-11-21 16:30:28,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:30:28,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:30:28,356 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:28,356 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, 1] [2022-11-21 16:30:28,357 INFO L748 eck$LassoCheckResult]: Stem: 1580#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1536#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 1391#L1035 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1392#L1028 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1498#L1043 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1463#L990 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 1464#L963 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1565#L322 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1501#L378-2 [2022-11-21 16:30:28,357 INFO L750 eck$LassoCheckResult]: Loop: 1501#L378-2 assume !false; 1480#L379 assume test_~splverifierCounter~0#1 < 4; 1481#L380 test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1649#L388 assume !(0 != test_~tmp~7#1); 1647#L388-2 test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1645#L398 assume !(0 != test_~tmp___0~3#1); 1643#L398-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1642#L408 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1640#L310 assume { :end_inline_startSystem } true; 1639#L416-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1465#L227 __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 1466#L332 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1474#L73 assume !(0 != ~pumpRunning~0); 1386#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1325#L157 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1326#L131-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1327#L105-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1328#L884-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1453#L889-3 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 1454#L276-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1444#L276-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1445#L282-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1569#L109-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1321#L97-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1322#L105-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1472#L131-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1355#L157-1 assume { :end_inline_processEnvironment } true; 1356#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1461#L876 __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 1462#L343 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 1408#L343-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1409#L90 assume { :end_inline_timeShift } true; 1501#L378-2 [2022-11-21 16:30:28,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:28,358 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-21 16:30:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:28,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760620800] [2022-11-21 16:30:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:30:28,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:28,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1643392611, now seen corresponding path program 1 times [2022-11-21 16:30:28,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:28,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599701362] [2022-11-21 16:30:28,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:28,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:28,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:28,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599701362] [2022-11-21 16:30:28,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599701362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:28,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:28,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:30:28,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197008250] [2022-11-21 16:30:28,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:28,537 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 16:30:28,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:28,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:30:28,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:30:28,538 INFO L87 Difference]: Start difference. First operand 333 states and 419 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-21 16:30:28,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:30:28,795 INFO L93 Difference]: Finished difference Result 998 states and 1232 transitions. [2022-11-21 16:30:28,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 998 states and 1232 transitions. [2022-11-21 16:30:28,806 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 627 [2022-11-21 16:30:28,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 998 states to 998 states and 1232 transitions. [2022-11-21 16:30:28,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 998 [2022-11-21 16:30:28,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 998 [2022-11-21 16:30:28,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 998 states and 1232 transitions. [2022-11-21 16:30:28,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:28,822 INFO L218 hiAutomatonCegarLoop]: Abstraction has 998 states and 1232 transitions. [2022-11-21 16:30:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states and 1232 transitions. [2022-11-21 16:30:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 656. [2022-11-21 16:30:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 656 states have (on average 1.236280487804878) internal successors, (811), 655 states have internal predecessors, (811), 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) [2022-11-21 16:30:28,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 811 transitions. [2022-11-21 16:30:28,862 INFO L240 hiAutomatonCegarLoop]: Abstraction has 656 states and 811 transitions. [2022-11-21 16:30:28,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:30:28,866 INFO L428 stractBuchiCegarLoop]: Abstraction has 656 states and 811 transitions. [2022-11-21 16:30:28,866 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 16:30:28,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 656 states and 811 transitions. [2022-11-21 16:30:28,870 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 454 [2022-11-21 16:30:28,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:30:28,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:30:28,874 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:28,874 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, 1, 1, 1] [2022-11-21 16:30:28,874 INFO L748 eck$LassoCheckResult]: Stem: 2957#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 2898#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~11#1, main_~tmp~11#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 2736#L1035 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2737#L1028 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2851#L1043 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 2815#L990 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 2816#L963 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2934#L322 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2856#L378-2 [2022-11-21 16:30:28,875 INFO L750 eck$LassoCheckResult]: Loop: 2856#L378-2 assume !false; 2834#L379 assume test_~splverifierCounter~0#1 < 4; 2835#L380 test_~tmp~7#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2713#L388 assume !(0 != test_~tmp~7#1); 2715#L388-2 test_~tmp___0~3#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3296#L398 assume !(0 != test_~tmp___0~3#1); 3294#L398-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 3293#L408 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3291#L310 assume { :end_inline_startSystem } true; 3290#L416-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret19#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2817#L227 __utac_acc__Specification5_spec__2_#t~ret19#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret19#1;havoc __utac_acc__Specification5_spec__2_#t~ret19#1; 2818#L332 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2826#L73 assume !(0 != ~pumpRunning~0); 2733#L73-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2674#L157 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2675#L131-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2672#L105-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 2673#L884-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 2804#L889-3 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 2805#L276-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2795#L276-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2796#L282-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 2940#L109-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2668#L97-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2669#L105-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3272#L131-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2948#L157-1 assume { :end_inline_processEnvironment } true; 2953#L80-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret20#1, __utac_acc__Specification5_spec__3_#t~ret21#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 2813#L876 __utac_acc__Specification5_spec__3_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret20#1;havoc __utac_acc__Specification5_spec__3_#t~ret20#1; 2814#L343 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2710#L227-1 __utac_acc__Specification5_spec__3_#t~ret21#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret21#1;havoc __utac_acc__Specification5_spec__3_#t~ret21#1; 2711#L347 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2758#L343-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2759#L90 assume { :end_inline_timeShift } true; 2856#L378-2 [2022-11-21 16:30:28,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:28,876 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-11-21 16:30:28,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:28,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10758001] [2022-11-21 16:30:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:28,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:30:28,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:28,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1266756834, now seen corresponding path program 1 times [2022-11-21 16:30:28,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:28,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61689894] [2022-11-21 16:30:28,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:28,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:30:28,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:28,964 INFO L85 PathProgramCache]: Analyzing trace with hash 794393543, now seen corresponding path program 1 times [2022-11-21 16:30:28,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:28,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921367053] [2022-11-21 16:30:28,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:28,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:28,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:29,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:30:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:30,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:30:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:30:30,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 04:30:30 BoogieIcfgContainer [2022-11-21 16:30:30,570 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 16:30:30,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:30:30,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:30:30,575 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:30:30,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:27" (3/4) ... [2022-11-21 16:30:30,578 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-21 16:30:30,648 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:30:30,649 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:30:30,650 INFO L158 Benchmark]: Toolchain (without parser) took 4982.06ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 148.4MB in the beginning and 128.2MB in the end (delta: 20.2MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2022-11-21 16:30:30,650 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:30:30,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.34ms. Allocated memory is still 184.5MB. Free memory was 147.5MB in the beginning and 128.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:30:30,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.45ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 123.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:30:30,651 INFO L158 Benchmark]: Boogie Preprocessor took 70.07ms. Allocated memory is still 184.5MB. Free memory was 123.5MB in the beginning and 120.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:30:30,652 INFO L158 Benchmark]: RCFGBuilder took 995.35ms. Allocated memory is still 184.5MB. Free memory was 120.2MB in the beginning and 79.4MB in the end (delta: 40.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-21 16:30:30,652 INFO L158 Benchmark]: BuchiAutomizer took 3167.28ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 79.4MB in the beginning and 131.4MB in the end (delta: -51.9MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-11-21 16:30:30,653 INFO L158 Benchmark]: Witness Printer took 74.95ms. Allocated memory is still 241.2MB. Free memory was 131.4MB in the beginning and 128.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:30:30,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.34ms. Allocated memory is still 184.5MB. Free memory was 147.5MB in the beginning and 128.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.45ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 123.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.07ms. Allocated memory is still 184.5MB. Free memory was 123.5MB in the beginning and 120.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 995.35ms. Allocated memory is still 184.5MB. Free memory was 120.2MB in the beginning and 79.4MB in the end (delta: 40.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3167.28ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 79.4MB in the beginning and 131.4MB in the end (delta: -51.9MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Witness Printer took 74.95ms. Allocated memory is still 241.2MB. Free memory was 131.4MB in the beginning and 128.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 656 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 342 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1805 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1805 mSDsluCounter, 2506 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1239 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 1267 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 378]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L316] int switchedOnBeforeTS ; [L604] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L801] int waterLevel = 1; [L802] int methaneLevelCritical = 0; [L904] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L981] int retValue_acc ; [L982] int tmp ; [L986] FCALL select_helpers() [L987] FCALL select_features() [L988] CALL, EXPR valid_product() [L1039] int retValue_acc ; [L1042] retValue_acc = 1 [L1043] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L988] RET, EXPR valid_product() [L988] tmp = valid_product() [L990] COND TRUE \read(tmp) [L992] FCALL setup() [L993] CALL runTest() [L971] CALL __utac_acc__Specification5_spec__1() [L321] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L971] RET __utac_acc__Specification5_spec__1() [L972] CALL test() [L369] int splverifierCounter ; [L370] int tmp ; [L371] int tmp___0 ; [L372] int tmp___1 ; [L373] int tmp___2 ; [L376] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L378] COND TRUE 1 [L380] COND TRUE splverifierCounter < 4 [L386] tmp = __VERIFIER_nondet_int() [L388] COND FALSE !(\read(tmp)) [L396] tmp___0 = __VERIFIER_nondet_int() [L398] COND FALSE !(\read(tmp___0)) [L406] tmp___2 = __VERIFIER_nondet_int() [L408] COND TRUE \read(tmp___2) [L410] CALL startSystem() [L309] systemActive = 1 [L410] RET startSystem() [L423] CALL timeShift() [L71] CALL __utac_acc__Specification5_spec__2() [L330] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L330] RET, EXPR isPumpRunning() [L330] switchedOnBeforeTS = isPumpRunning() [L71] RET __utac_acc__Specification5_spec__2() [L73] COND FALSE !(\read(pumpRunning)) [L80] COND TRUE \read(systemActive) [L82] CALL processEnvironment() [L154] int tmp ; [L157] COND FALSE !(\read(pumpRunning)) [L172] CALL processEnvironment__wrappee__methaneQuery() [L128] int tmp ; [L131] COND FALSE !(\read(pumpRunning)) [L146] CALL processEnvironment__wrappee__highWaterSensor() [L102] int tmp ; [L105] COND TRUE ! pumpRunning [L107] CALL, EXPR isHighWaterLevel() [L268] int retValue_acc ; [L269] int tmp ; [L270] int tmp___0 ; [L274] CALL, EXPR isHighWaterSensorDry() [L881] int retValue_acc ; [L884] COND TRUE waterLevel < 2 [L885] retValue_acc = 1 [L886] return (retValue_acc); [L274] RET, EXPR isHighWaterSensorDry() [L274] tmp = isHighWaterSensorDry() [L276] COND TRUE \read(tmp) [L277] tmp___0 = 0 [L281] retValue_acc = tmp___0 [L282] return (retValue_acc); [L107] RET, EXPR isHighWaterLevel() [L107] tmp = isHighWaterLevel() [L109] COND FALSE !(\read(tmp)) [L115] FCALL processEnvironment__wrappee__base() [L146] RET processEnvironment__wrappee__highWaterSensor() [L172] RET processEnvironment__wrappee__methaneQuery() [L82] RET processEnvironment() [L88] CALL __utac_acc__Specification5_spec__3() [L336] int tmp ; [L337] int tmp___0 ; [L341] CALL, EXPR getWaterLevel() [L872] int retValue_acc ; [L875] retValue_acc = waterLevel [L876] return (retValue_acc); [L341] RET, EXPR getWaterLevel() [L341] tmp = getWaterLevel() [L343] COND TRUE tmp != 2 [L345] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L345] RET, EXPR isPumpRunning() [L345] tmp___0 = isPumpRunning() [L347] COND FALSE !(\read(tmp___0)) [L88] RET __utac_acc__Specification5_spec__3() [L423] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 378]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L316] int switchedOnBeforeTS ; [L604] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L801] int waterLevel = 1; [L802] int methaneLevelCritical = 0; [L904] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L981] int retValue_acc ; [L982] int tmp ; [L986] FCALL select_helpers() [L987] FCALL select_features() [L988] CALL, EXPR valid_product() [L1039] int retValue_acc ; [L1042] retValue_acc = 1 [L1043] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L988] RET, EXPR valid_product() [L988] tmp = valid_product() [L990] COND TRUE \read(tmp) [L992] FCALL setup() [L993] CALL runTest() [L971] CALL __utac_acc__Specification5_spec__1() [L321] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L971] RET __utac_acc__Specification5_spec__1() [L972] CALL test() [L369] int splverifierCounter ; [L370] int tmp ; [L371] int tmp___0 ; [L372] int tmp___1 ; [L373] int tmp___2 ; [L376] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L378] COND TRUE 1 [L380] COND TRUE splverifierCounter < 4 [L386] tmp = __VERIFIER_nondet_int() [L388] COND FALSE !(\read(tmp)) [L396] tmp___0 = __VERIFIER_nondet_int() [L398] COND FALSE !(\read(tmp___0)) [L406] tmp___2 = __VERIFIER_nondet_int() [L408] COND TRUE \read(tmp___2) [L410] CALL startSystem() [L309] systemActive = 1 [L410] RET startSystem() [L423] CALL timeShift() [L71] CALL __utac_acc__Specification5_spec__2() [L330] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L330] RET, EXPR isPumpRunning() [L330] switchedOnBeforeTS = isPumpRunning() [L71] RET __utac_acc__Specification5_spec__2() [L73] COND FALSE !(\read(pumpRunning)) [L80] COND TRUE \read(systemActive) [L82] CALL processEnvironment() [L154] int tmp ; [L157] COND FALSE !(\read(pumpRunning)) [L172] CALL processEnvironment__wrappee__methaneQuery() [L128] int tmp ; [L131] COND FALSE !(\read(pumpRunning)) [L146] CALL processEnvironment__wrappee__highWaterSensor() [L102] int tmp ; [L105] COND TRUE ! pumpRunning [L107] CALL, EXPR isHighWaterLevel() [L268] int retValue_acc ; [L269] int tmp ; [L270] int tmp___0 ; [L274] CALL, EXPR isHighWaterSensorDry() [L881] int retValue_acc ; [L884] COND TRUE waterLevel < 2 [L885] retValue_acc = 1 [L886] return (retValue_acc); [L274] RET, EXPR isHighWaterSensorDry() [L274] tmp = isHighWaterSensorDry() [L276] COND TRUE \read(tmp) [L277] tmp___0 = 0 [L281] retValue_acc = tmp___0 [L282] return (retValue_acc); [L107] RET, EXPR isHighWaterLevel() [L107] tmp = isHighWaterLevel() [L109] COND FALSE !(\read(tmp)) [L115] FCALL processEnvironment__wrappee__base() [L146] RET processEnvironment__wrappee__highWaterSensor() [L172] RET processEnvironment__wrappee__methaneQuery() [L82] RET processEnvironment() [L88] CALL __utac_acc__Specification5_spec__3() [L336] int tmp ; [L337] int tmp___0 ; [L341] CALL, EXPR getWaterLevel() [L872] int retValue_acc ; [L875] retValue_acc = waterLevel [L876] return (retValue_acc); [L341] RET, EXPR getWaterLevel() [L341] tmp = getWaterLevel() [L343] COND TRUE tmp != 2 [L345] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L345] RET, EXPR isPumpRunning() [L345] tmp___0 = isPumpRunning() [L347] COND FALSE !(\read(tmp___0)) [L88] RET __utac_acc__Specification5_spec__3() [L423] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-21 16:30:30,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25386aea-5544-410f-bc43-c2772e358fbd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)