./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 54addd62801479259ccbf9158d3d6aa338ff21ad ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:36:59,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:36:59,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:36:59,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:36:59,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:36:59,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:36:59,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:36:59,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:36:59,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:36:59,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:36:59,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:36:59,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:36:59,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:36:59,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:36:59,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:36:59,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:36:59,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:36:59,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:36:59,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:36:59,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:36:59,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:36:59,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:36:59,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:36:59,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:36:59,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:36:59,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:36:59,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:36:59,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:36:59,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:36:59,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:36:59,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:36:59,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:36:59,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:36:59,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:36:59,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:36:59,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:36:59,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:36:59,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:36:59,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:36:59,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:36:59,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:36:59,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:36:59,466 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:36:59,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:36:59,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:36:59,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:36:59,469 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:36:59,469 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:36:59,469 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:36:59,470 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:36:59,470 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:36:59,470 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:36:59,471 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:36:59,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:36:59,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:36:59,471 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:36:59,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:36:59,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:36:59,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:36:59,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:36:59,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:36:59,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:36:59,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:36:59,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:36:59,473 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:36:59,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:36:59,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:36:59,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:36:59,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:36:59,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:36:59,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:36:59,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:36:59,476 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:36:59,476 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54addd62801479259ccbf9158d3d6aa338ff21ad [2021-07-06 20:36:59,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:36:59,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:36:59,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:36:59,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:36:59,797 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:36:59,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2021-07-06 20:36:59,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654310959/f99478c099494eeeb2b646884980ea13/FLAGe0c8705fd [2021-07-06 20:37:00,260 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:37:00,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2021-07-06 20:37:00,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654310959/f99478c099494eeeb2b646884980ea13/FLAGe0c8705fd [2021-07-06 20:37:00,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654310959/f99478c099494eeeb2b646884980ea13 [2021-07-06 20:37:00,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:37:00,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:37:00,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:37:00,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:37:00,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:37:00,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:37:00" (1/1) ... [2021-07-06 20:37:00,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ea221c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:00, skipping insertion in model container [2021-07-06 20:37:00,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:37:00" (1/1) ... [2021-07-06 20:37:00,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:37:00,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:37:00,942 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c[18052,18065] [2021-07-06 20:37:00,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:37:00,961 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:37:01,051 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c[18052,18065] [2021-07-06 20:37:01,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:37:01,102 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:37:01,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01 WrapperNode [2021-07-06 20:37:01,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:37:01,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:37:01,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:37:01,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:37:01,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:37:01,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:37:01,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:37:01,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:37:01,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:37:01,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:37:01,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:37:01,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:37:01,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (1/1) ... [2021-07-06 20:37:01,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:37:01,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:37:01,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 20:37:01,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 20:37:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:37:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:37:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:37:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:37:02,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:37:02,301 INFO L299 CfgBuilder]: Removed 362 assume(true) statements. [2021-07-06 20:37:02,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:37:02 BoogieIcfgContainer [2021-07-06 20:37:02,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:37:02,303 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:37:02,303 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:37:02,306 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:37:02,306 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:37:02,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:37:00" (1/3) ... [2021-07-06 20:37:02,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57f6077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:37:02, skipping insertion in model container [2021-07-06 20:37:02,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:37:02,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:37:01" (2/3) ... [2021-07-06 20:37:02,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57f6077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:37:02, skipping insertion in model container [2021-07-06 20:37:02,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:37:02,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:37:02" (3/3) ... [2021-07-06 20:37:02,309 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2021-07-06 20:37:02,340 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:37:02,341 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:37:02,341 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:37:02,341 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:37:02,341 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:37:02,341 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:37:02,341 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:37:02,342 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:37:02,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 231 states, 230 states have (on average 1.5) internal successors, (345), 230 states have internal predecessors, (345), 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) [2021-07-06 20:37:02,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-07-06 20:37:02,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:37:02,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:37:02,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:02,403 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:02,403 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:37:02,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 231 states, 230 states have (on average 1.5) internal successors, (345), 230 states have internal predecessors, (345), 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) [2021-07-06 20:37:02,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-07-06 20:37:02,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:37:02,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:37:02,416 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:02,416 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:02,420 INFO L791 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 5#L-1true havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 119#L910true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 26#L918true main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 208#L1015true assume 0 != main_~tmp~11; 72#L991true ~switchedOnBeforeTS~0 := 0; 98#L842true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 8#L863-1true [2021-07-06 20:37:02,420 INFO L793 eck$LassoCheckResult]: Loop: 8#L863-1true assume !false; 231#L57true assume test_~splverifierCounter~0 < 4; 150#L58true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 80#L66true assume !(0 != test_~tmp~0); 78#L66-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 16#L76true assume !(0 != test_~tmp___0~0); 11#L76-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 41#L86true assume 0 != test_~tmp___2~0; 24#L92-2true havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 69#L286true __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 7#L852true assume !(0 != ~pumpRunning~0); 88#L132true assume !(0 != ~systemActive~0); 141#L139true havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 147#L441true __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 28#L863true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 8#L863-1true [2021-07-06 20:37:02,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:02,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:37:02,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:02,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065043776] [2021-07-06 20:37:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:02,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:02,665 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:02,748 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:02,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:37:02,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:02,775 INFO L82 PathProgramCache]: Analyzing trace with hash 100753900, now seen corresponding path program 1 times [2021-07-06 20:37:02,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:02,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619842582] [2021-07-06 20:37:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:02,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:02,780 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:02,783 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:02,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:37:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:02,788 INFO L82 PathProgramCache]: Analyzing trace with hash 2034779110, now seen corresponding path program 1 times [2021-07-06 20:37:02,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:02,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729628637] [2021-07-06 20:37:02,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:02,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:37:02,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:02,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:37:02,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:02,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:37:02,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:02,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:37:02,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:02,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:37:02,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:02,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:37:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:37:02,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:37:02,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729628637] [2021-07-06 20:37:02,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729628637] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:37:02,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:37:02,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:37:02,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079301620] [2021-07-06 20:37:02,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:02,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-07-06 20:37:03,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:37:03,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:37:03,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:37:03,030 INFO L87 Difference]: Start difference. First operand has 231 states, 230 states have (on average 1.5) internal successors, (345), 230 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:37:03,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:37:03,194 INFO L93 Difference]: Finished difference Result 231 states and 334 transitions. [2021-07-06 20:37:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 20:37:03,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 334 transitions. [2021-07-06 20:37:03,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-07-06 20:37:03,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 224 states and 327 transitions. [2021-07-06 20:37:03,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2021-07-06 20:37:03,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2021-07-06 20:37:03,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 327 transitions. [2021-07-06 20:37:03,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:37:03,217 INFO L681 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2021-07-06 20:37:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 327 transitions. [2021-07-06 20:37:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2021-07-06 20:37:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 224 states have (on average 1.4598214285714286) internal successors, (327), 223 states have internal predecessors, (327), 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) [2021-07-06 20:37:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2021-07-06 20:37:03,249 INFO L704 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2021-07-06 20:37:03,249 INFO L587 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2021-07-06 20:37:03,249 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:37:03,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states and 327 transitions. [2021-07-06 20:37:03,251 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-07-06 20:37:03,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:37:03,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:37:03,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:03,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:03,252 INFO L791 eck$LassoCheckResult]: Stem: 589#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 483#L-1 havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 484#L910 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 525#L918 main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 526#L1015 assume 0 != main_~tmp~11; 583#L991 ~switchedOnBeforeTS~0 := 0; 584#L842 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 491#L863-1 [2021-07-06 20:37:03,253 INFO L793 eck$LassoCheckResult]: Loop: 491#L863-1 assume !false; 492#L57 assume test_~splverifierCounter~0 < 4; 674#L58 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 596#L66 assume !(0 != test_~tmp~0); 528#L66-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 509#L76 assume !(0 != test_~tmp___0~0); 498#L76-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 499#L86 assume 0 != test_~tmp___2~0; 522#L92-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 523#L286 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 485#L852 assume !(0 != ~pumpRunning~0); 486#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 605#L216 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret12, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 673#L190-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 504#L164-3 assume !(0 == ~pumpRunning~0); 481#L139 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 666#L441 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 529#L863 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 491#L863-1 [2021-07-06 20:37:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:03,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:37:03,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:03,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739607054] [2021-07-06 20:37:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:03,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:03,296 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:03,333 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:03,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:37:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:03,356 INFO L82 PathProgramCache]: Analyzing trace with hash 245468073, now seen corresponding path program 1 times [2021-07-06 20:37:03,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:03,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153931048] [2021-07-06 20:37:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:03,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:37:03,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:03,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:37:03,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:03,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:37:03,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:03,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:37:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:37:03,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:37:03,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153931048] [2021-07-06 20:37:03,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153931048] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:37:03,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:37:03,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:37:03,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734613340] [2021-07-06 20:37:03,380 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:37:03,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:37:03,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:37:03,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:37:03,381 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-07-06 20:37:03,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:37:03,505 INFO L93 Difference]: Finished difference Result 228 states and 314 transitions. [2021-07-06 20:37:03,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:37:03,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 314 transitions. [2021-07-06 20:37:03,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2021-07-06 20:37:03,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 314 transitions. [2021-07-06 20:37:03,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2021-07-06 20:37:03,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2021-07-06 20:37:03,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 314 transitions. [2021-07-06 20:37:03,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:37:03,511 INFO L681 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-07-06 20:37:03,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 314 transitions. [2021-07-06 20:37:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-07-06 20:37:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 228 states have (on average 1.3771929824561404) internal successors, (314), 227 states have internal predecessors, (314), 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) [2021-07-06 20:37:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-07-06 20:37:03,519 INFO L704 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-07-06 20:37:03,519 INFO L587 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-07-06 20:37:03,519 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:37:03,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 314 transitions. [2021-07-06 20:37:03,521 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2021-07-06 20:37:03,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:37:03,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:37:03,522 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:03,522 INFO L843 BuchiCegarLoop]: 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] [2021-07-06 20:37:03,522 INFO L791 eck$LassoCheckResult]: Stem: 1097#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 965#L-1 havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 943#L910 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 944#L918 main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 1001#L1015 assume 0 != main_~tmp~11; 1090#L991 ~switchedOnBeforeTS~0 := 0; 1091#L842 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 970#L863-1 [2021-07-06 20:37:03,522 INFO L793 eck$LassoCheckResult]: Loop: 970#L863-1 assume !false; 971#L57 assume test_~splverifierCounter~0 < 4; 1127#L58 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 1164#L66 assume !(0 != test_~tmp~0); 1155#L66-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 1152#L76 assume !(0 != test_~tmp___0~0); 1149#L76-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 1147#L86 assume 0 != test_~tmp___2~0; 1144#L92-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1089#L286 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 966#L852 assume !(0 != ~pumpRunning~0); 967#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1015#L216 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret12, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 1016#L190-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 984#L164-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret32, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 985#L449-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1032#L454-3 isHighWaterLevel_#t~ret32 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret32;havoc isHighWaterLevel_#t~ret32; 1078#L335-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1102#L335-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1098#L341-3 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 1043#L168-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 941#L139 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1009#L441 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1004#L863 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 970#L863-1 [2021-07-06 20:37:03,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:03,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-07-06 20:37:03,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:03,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991279799] [2021-07-06 20:37:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:03,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:03,551 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:03,600 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:03,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:37:03,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:03,611 INFO L82 PathProgramCache]: Analyzing trace with hash 804540373, now seen corresponding path program 1 times [2021-07-06 20:37:03,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:03,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204809769] [2021-07-06 20:37:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:03,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:37:03,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:03,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:37:03,640 INFO L142 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-07-06 20:37:03,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:37:03,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:03,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:37:03,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:03,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:37:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:37:03,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:37:03,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204809769] [2021-07-06 20:37:03,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204809769] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:37:03,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:37:03,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-06 20:37:03,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5923007] [2021-07-06 20:37:03,657 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:37:03,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:37:03,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 20:37:03,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 20:37:03,657 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. cyclomatic complexity: 88 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-07-06 20:37:03,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:37:03,961 INFO L93 Difference]: Finished difference Result 1078 states and 1497 transitions. [2021-07-06 20:37:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-06 20:37:03,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1078 states and 1497 transitions. [2021-07-06 20:37:03,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 733 [2021-07-06 20:37:03,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1078 states to 1078 states and 1497 transitions. [2021-07-06 20:37:03,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1078 [2021-07-06 20:37:03,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1078 [2021-07-06 20:37:03,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1078 states and 1497 transitions. [2021-07-06 20:37:03,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:37:03,982 INFO L681 BuchiCegarLoop]: Abstraction has 1078 states and 1497 transitions. [2021-07-06 20:37:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states and 1497 transitions. [2021-07-06 20:37:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 446. [2021-07-06 20:37:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 446 states have (on average 1.3654708520179373) internal successors, (609), 445 states have internal predecessors, (609), 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) [2021-07-06 20:37:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 609 transitions. [2021-07-06 20:37:04,010 INFO L704 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2021-07-06 20:37:04,010 INFO L587 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2021-07-06 20:37:04,010 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-07-06 20:37:04,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 609 transitions. [2021-07-06 20:37:04,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 310 [2021-07-06 20:37:04,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:37:04,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:37:04,013 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:37:04,013 INFO L843 BuchiCegarLoop]: 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] [2021-07-06 20:37:04,014 INFO L791 eck$LassoCheckResult]: Stem: 2433#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2290#L-1 havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 2268#L910 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2269#L918 main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 2327#L1015 assume 0 != main_~tmp~11; 2426#L991 ~switchedOnBeforeTS~0 := 0; 2427#L842 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2295#L863-1 [2021-07-06 20:37:04,014 INFO L793 eck$LassoCheckResult]: Loop: 2295#L863-1 assume !false; 2296#L57 assume test_~splverifierCounter~0 < 4; 2476#L58 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 2688#L66 assume !(0 != test_~tmp~0); 2686#L66-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 2685#L76 assume !(0 != test_~tmp___0~0); 2683#L76-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 2682#L86 assume 0 != test_~tmp___2~0; 2680#L92-2 havoc __utac_acc__Specification5_spec__2_#t~ret79;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2679#L286 __utac_acc__Specification5_spec__2_#t~ret79 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret79;havoc __utac_acc__Specification5_spec__2_#t~ret79; 2678#L852 assume !(0 != ~pumpRunning~0); 2442#L132 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2443#L216 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret12, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 2673#L190-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2672#L164-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret32, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2671#L449-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2364#L454-3 isHighWaterLevel_#t~ret32 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret32;havoc isHighWaterLevel_#t~ret32; 2670#L335-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2669#L335-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2668#L341-3 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 2378#L168-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 2264#L139 havoc __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 2652#L441 __utac_acc__Specification5_spec__3_#t~ret80 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 2330#L863 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2331#L286-1 __utac_acc__Specification5_spec__3_#t~ret81 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 2415#L867 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2295#L863-1 [2021-07-06 20:37:04,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:04,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-07-06 20:37:04,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:04,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620032593] [2021-07-06 20:37:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:04,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:04,043 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:04,064 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:04,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:37:04,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:04,075 INFO L82 PathProgramCache]: Analyzing trace with hash 69177840, now seen corresponding path program 1 times [2021-07-06 20:37:04,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:04,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306288442] [2021-07-06 20:37:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:04,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:04,084 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:04,092 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:04,094 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:37:04,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:37:04,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1897033802, now seen corresponding path program 1 times [2021-07-06 20:37:04,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:37:04,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455301937] [2021-07-06 20:37:04,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:37:04,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:37:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:04,145 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:37:04,185 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:37:04,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:37:04,349 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-07-06 20:37:04,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:04,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-07-06 20:37:46,636 WARN L205 SmtUtils]: Spent 42.19 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:37:46,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:37:46,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:38:08,406 WARN L205 SmtUtils]: Spent 21.66 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:38:08,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:38:08 BoogieIcfgContainer [2021-07-06 20:38:08,506 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:38:08,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:38:08,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:38:08,506 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:38:08,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:37:02" (3/4) ... [2021-07-06 20:38:08,512 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:38:08,554 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:38:08,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:38:08,555 INFO L168 Benchmark]: Toolchain (without parser) took 67948.81 ms. Allocated memory was 65.0 MB in the beginning and 121.6 MB in the end (delta: 56.6 MB). Free memory was 48.1 MB in the beginning and 37.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:38:08,556 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 29.5 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:38:08,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.85 ms. Allocated memory is still 65.0 MB. Free memory was 47.9 MB in the beginning and 36.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:38:08,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.71 ms. Allocated memory is still 65.0 MB. Free memory was 36.0 MB in the beginning and 45.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:38:08,557 INFO L168 Benchmark]: Boogie Preprocessor took 100.76 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 41.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:38:08,557 INFO L168 Benchmark]: RCFGBuilder took 999.07 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 41.1 MB in the beginning and 47.9 MB in the end (delta: -6.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:38:08,557 INFO L168 Benchmark]: BuchiAutomizer took 66202.35 ms. Allocated memory was 79.7 MB in the beginning and 121.6 MB in the end (delta: 41.9 MB). Free memory was 47.8 MB in the beginning and 40.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 69.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:38:08,558 INFO L168 Benchmark]: Witness Printer took 48.48 ms. Allocated memory is still 121.6 MB. Free memory was 39.3 MB in the beginning and 37.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:38:08,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 29.5 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 489.85 ms. Allocated memory is still 65.0 MB. Free memory was 47.9 MB in the beginning and 36.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.71 ms. Allocated memory is still 65.0 MB. Free memory was 36.0 MB in the beginning and 45.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.76 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 41.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 999.07 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 41.1 MB in the beginning and 47.9 MB in the end (delta: -6.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 66202.35 ms. Allocated memory was 79.7 MB in the beginning and 121.6 MB in the end (delta: 41.9 MB). Free memory was 47.8 MB in the beginning and 40.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 69.4 MB. Max. memory is 16.1 GB. * Witness Printer took 48.48 ms. Allocated memory is still 121.6 MB. Free memory was 39.3 MB in the beginning and 37.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 6 locations. The remainder module has 446 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 66.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 65.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 56.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 632 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 446 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1046 SDtfs, 2438 SDslu, 1361 SDs, 0 SdLazy, 237 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 338.8ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 56]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35c1d5b6=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7da45ecd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b4ac501=0, NULL=1, NULL=22668, NULL=0, retValue_acc=1, NULL=22665, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@295558d3=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=22657, NULL=22683, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b49d7d9=0, NULL=22675, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@509952a3=0, cleanupTimeShifts=4, tmp=0, tmp=1, NULL=22674, NULL=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@490acbd6=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=22670, NULL=0, \result=1, tmp=1, NULL=0, NULL=0, NULL=22659, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, retValue_acc=1, NULL=22667, NULL=22682, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@efc033c=0, tmp=0, head=0, NULL=22661, NULL=0, NULL=0, NULL=0, NULL=22669, NULL=22663, tmp=0, NULL=0, NULL=22664, NULL=0, NULL=22660, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42b7bbf6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6df90486=0, NULL=22673, tmp___0=0, NULL=0, NULL=22671, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d1ab0ef=0, tmp=0, switchedOnBeforeTS=0, NULL=22681, NULL=22678, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=19180, retValue_acc=0, \result=0, tmp___0=0, NULL=22676, NULL=0, NULL=22666, NULL=22679, NULL=0, NULL=22662, NULL=22677, tmp___2=53, splverifierCounter=0, NULL=0, NULL=22658, retValue_acc=0, NULL=22680, NULL=22672, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f05236=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L366] int waterLevel = 1; [L367] int methaneLevelCritical = 0; [L638] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L836] int switchedOnBeforeTS ; [L932] int cleanupTimeShifts = 4; [L1006] int retValue_acc ; [L1007] int tmp ; [L914] int retValue_acc ; [L917] retValue_acc = 1 [L918] return (retValue_acc); [L1013] tmp = valid_product() [L1015] COND TRUE \read(tmp) [L841] switchedOnBeforeTS = 0 [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 Loop: [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L282] int retValue_acc ; [L285] retValue_acc = pumpRunning [L286] return (retValue_acc); [L850] switchedOnBeforeTS = isPumpRunning() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND TRUE \read(systemActive) [L213] int tmp ; [L216] COND FALSE !(\read(pumpRunning)) [L187] int tmp ; [L190] COND FALSE !(\read(pumpRunning)) [L161] int tmp ; [L164] COND TRUE ! pumpRunning [L327] int retValue_acc ; [L328] int tmp ; [L329] int tmp___0 ; [L446] int retValue_acc ; [L449] COND TRUE waterLevel < 2 [L450] retValue_acc = 1 [L451] return (retValue_acc); [L333] tmp = isHighWaterSensorDry() [L335] COND TRUE \read(tmp) [L336] tmp___0 = 0 [L340] retValue_acc = tmp___0 [L341] return (retValue_acc); [L166] tmp = isHighWaterLevel() [L168] COND FALSE !(\read(tmp)) [L856] int tmp ; [L857] int tmp___0 ; [L437] int retValue_acc ; [L440] retValue_acc = waterLevel [L441] return (retValue_acc); [L861] tmp = getWaterLevel() [L863] COND TRUE tmp != 2 [L282] int retValue_acc ; [L285] retValue_acc = pumpRunning [L286] return (retValue_acc); [L865] tmp___0 = isPumpRunning() [L867] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:38:08,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...