./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX --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 2a152d19fa28b0169076b34a0513a75c542cc933ab1c694f300fdf3273b66e93 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:46:12,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:46:12,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:46:12,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:46:12,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:46:12,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:46:12,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:46:12,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:46:12,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:46:12,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:46:12,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:46:12,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:46:12,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:46:12,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:46:12,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:46:12,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:46:12,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:46:12,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:46:12,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:46:12,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:46:12,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:46:12,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:46:12,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:46:12,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:46:12,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:46:12,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:46:12,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:46:12,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:46:12,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:46:12,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:46:12,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:46:12,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:46:12,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:46:12,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:46:12,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:46:12,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:46:12,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:46:12,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:46:12,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:46:12,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:46:12,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:46:12,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 08:46:12,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:46:12,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:46:12,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:46:12,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:46:12,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:46:12,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:46:12,585 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:46:12,585 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 08:46:12,585 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 08:46:12,585 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 08:46:12,586 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 08:46:12,587 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 08:46:12,587 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 08:46:12,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:46:12,587 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:46:12,587 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:46:12,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:46:12,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:46:12,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:46:12,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 08:46:12,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 08:46:12,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 08:46:12,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:46:12,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:46:12,589 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 08:46:12,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:46:12,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 08:46:12,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:46:12,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:46:12,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:46:12,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:46:12,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:46:12,592 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 08:46:12,592 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a152d19fa28b0169076b34a0513a75c542cc933ab1c694f300fdf3273b66e93 [2021-11-09 08:46:12,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:46:12,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:46:12,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:46:12,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:46:12,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:46:12,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2021-11-09 08:46:13,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/data/ea1406636/f7272c3db82c4ef3b4397791a7266d79/FLAG752f52e8e [2021-11-09 08:46:13,633 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:46:13,634 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2021-11-09 08:46:13,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/data/ea1406636/f7272c3db82c4ef3b4397791a7266d79/FLAG752f52e8e [2021-11-09 08:46:13,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/data/ea1406636/f7272c3db82c4ef3b4397791a7266d79 [2021-11-09 08:46:13,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:46:13,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:46:13,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:46:13,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:46:13,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:46:13,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:46:13" (1/1) ... [2021-11-09 08:46:13,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c377085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:13, skipping insertion in model container [2021-11-09 08:46:13,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:46:13" (1/1) ... [2021-11-09 08:46:13,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:46:13,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:46:14,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c[8026,8039] [2021-11-09 08:46:14,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:46:14,279 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:46:14,318 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c[8026,8039] [2021-11-09 08:46:14,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:46:14,414 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:46:14,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14 WrapperNode [2021-11-09 08:46:14,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:46:14,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:46:14,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:46:14,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:46:14,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:46:14,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:46:14,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:46:14,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:46:14,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:46:14,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:46:14,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:46:14,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:46:14,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (1/1) ... [2021-11-09 08:46:14,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:46:14,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:14,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:46:14,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 08:46:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:46:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:46:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:46:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:46:15,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:46:15,667 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-11-09 08:46:15,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:46:15 BoogieIcfgContainer [2021-11-09 08:46:15,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:46:15,671 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 08:46:15,671 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 08:46:15,674 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 08:46:15,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:46:15,675 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 08:46:13" (1/3) ... [2021-11-09 08:46:15,677 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec8f0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:46:15, skipping insertion in model container [2021-11-09 08:46:15,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:46:15,677 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:46:14" (2/3) ... [2021-11-09 08:46:15,678 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec8f0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:46:15, skipping insertion in model container [2021-11-09 08:46:15,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:46:15,678 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:46:15" (3/3) ... [2021-11-09 08:46:15,680 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2021-11-09 08:46:15,738 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 08:46:15,738 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 08:46:15,738 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 08:46:15,738 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 08:46:15,739 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 08:46:15,739 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 08:46:15,739 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 08:46:15,739 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 08:46:15,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 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) [2021-11-09 08:46:15,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-11-09 08:46:15,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:46:15,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:46:15,804 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:46:15,805 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:46:15,805 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 08:46:15,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 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) [2021-11-09 08:46:15,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-11-09 08:46:15,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:46:15,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:46:15,822 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:46:15,823 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:46:15,834 INFO L791 eck$LassoCheckResult]: Stem: 61#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 46#L-1true havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 13#L205true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 67#L213true main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 69#L169true assume 0 != main_~tmp~1; 38#L142true havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 47#L61-1true [2021-11-09 08:46:15,835 INFO L793 eck$LassoCheckResult]: Loop: 47#L61-1true assume !false; 12#L230true assume test_~splverifierCounter~0 < 4; 16#L231true test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 32#L239true assume !(0 != test_~tmp~2); 25#L239-1true test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 10#L249true assume !(0 != test_~tmp___0~1); 4#L249-1true test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 8#L259true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 24#L267-2true assume !(0 != ~pumpRunning~0); 42#L299true assume !(0 != ~systemActive~0); 71#L306true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 31#L527true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 9#L61true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 47#L61-1true [2021-11-09 08:46:15,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 08:46:15,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:15,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486357555] [2021-11-09 08:46:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:15,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,124 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:46:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:46:16,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:16,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1680575549, now seen corresponding path program 1 times [2021-11-09 08:46:16,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:16,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362899350] [2021-11-09 08:46:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:16,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:16,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:16,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362899350] [2021-11-09 08:46:16,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362899350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:46:16,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:46:16,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:46:16,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054260143] [2021-11-09 08:46:16,451 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 08:46:16,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:16,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:46:16,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:46:16,468 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-11-09 08:46:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:16,519 INFO L93 Difference]: Finished difference Result 75 states and 104 transitions. [2021-11-09 08:46:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:46:16,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 104 transitions. [2021-11-09 08:46:16,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-11-09 08:46:16,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 96 transitions. [2021-11-09 08:46:16,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-11-09 08:46:16,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-11-09 08:46:16,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 96 transitions. [2021-11-09 08:46:16,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:46:16,533 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-11-09 08:46:16,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 96 transitions. [2021-11-09 08:46:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-09 08:46:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.411764705882353) internal successors, (96), 67 states have internal predecessors, (96), 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) [2021-11-09 08:46:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2021-11-09 08:46:16,564 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-11-09 08:46:16,565 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-11-09 08:46:16,565 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 08:46:16,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 96 transitions. [2021-11-09 08:46:16,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-11-09 08:46:16,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:46:16,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:46:16,567 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:46:16,567 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:46:16,568 INFO L791 eck$LassoCheckResult]: Stem: 223#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 216#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 178#L205 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 179#L213 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 225#L169 assume 0 != main_~tmp~1; 210#L142 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 170#L61-1 [2021-11-09 08:46:16,568 INFO L793 eck$LassoCheckResult]: Loop: 170#L61-1 assume !false; 175#L230 assume test_~splverifierCounter~0 < 4; 176#L231 test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 184#L239 assume !(0 != test_~tmp~2); 198#L239-1 test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 172#L249 assume !(0 != test_~tmp___0~1); 161#L249-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 162#L259 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 165#L267-2 assume !(0 != ~pumpRunning~0); 194#L299 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 181#L331 assume !(0 == ~pumpRunning~0); 182#L306 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 200#L527 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 169#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 170#L61-1 [2021-11-09 08:46:16,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:16,569 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 08:46:16,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:16,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978564353] [2021-11-09 08:46:16,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:16,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:46:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:46:16,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:16,688 INFO L85 PathProgramCache]: Analyzing trace with hash -589844997, now seen corresponding path program 1 times [2021-11-09 08:46:16,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:16,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966598892] [2021-11-09 08:46:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:16,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:16,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:16,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:16,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966598892] [2021-11-09 08:46:16,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966598892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:46:16,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:46:16,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:46:16,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561188041] [2021-11-09 08:46:16,709 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 08:46:16,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:16,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:46:16,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:46:16,710 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-09 08:46:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:16,770 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2021-11-09 08:46:16,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:46:16,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 147 transitions. [2021-11-09 08:46:16,773 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-11-09 08:46:16,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 147 transitions. [2021-11-09 08:46:16,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2021-11-09 08:46:16,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2021-11-09 08:46:16,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 147 transitions. [2021-11-09 08:46:16,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:46:16,777 INFO L681 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-11-09 08:46:16,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 147 transitions. [2021-11-09 08:46:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-11-09 08:46:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.348623853211009) internal successors, (147), 108 states have internal predecessors, (147), 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) [2021-11-09 08:46:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions. [2021-11-09 08:46:16,786 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-11-09 08:46:16,786 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-11-09 08:46:16,786 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 08:46:16,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 147 transitions. [2021-11-09 08:46:16,787 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-11-09 08:46:16,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:46:16,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:46:16,788 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:46:16,789 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] [2021-11-09 08:46:16,789 INFO L791 eck$LassoCheckResult]: Stem: 410#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~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 399#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 361#L205 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 362#L213 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 412#L169 assume 0 != main_~tmp~1; 392#L142 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 353#L61-1 [2021-11-09 08:46:16,789 INFO L793 eck$LassoCheckResult]: Loop: 353#L61-1 assume !false; 358#L230 assume test_~splverifierCounter~0 < 4; 359#L231 test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 366#L239 assume !(0 != test_~tmp~2); 379#L239-1 test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 355#L249 assume !(0 != test_~tmp___0~1); 346#L249-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 347#L259 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 348#L267-2 assume !(0 != ~pumpRunning~0); 376#L299 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 364#L331 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 365#L535 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 375#L540 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 342#L433 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~2 := 0; 343#L433-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 409#L439 processEnvironment_#t~ret15 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret15;havoc processEnvironment_#t~ret15; 380#L335 assume !(0 != processEnvironment_~tmp~3); 382#L306 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 383#L527 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 352#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 353#L61-1 [2021-11-09 08:46:16,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:16,790 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-09 08:46:16,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:16,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762100950] [2021-11-09 08:46:16,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:16,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,862 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:46:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:46:16,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:16,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1033973017, now seen corresponding path program 1 times [2021-11-09 08:46:16,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:16,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16879593] [2021-11-09 08:46:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:16,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,977 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:46:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:16,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:46:16,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:16,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1019261043, now seen corresponding path program 1 times [2021-11-09 08:46:16,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:16,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912003856] [2021-11-09 08:46:16,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:16,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:17,025 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:46:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:46:17,098 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:47:19,724 WARN L207 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 08:48:27,409 WARN L207 SmtUtils]: Spent 31.15 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 08:48:27,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 08:48:27 BoogieIcfgContainer [2021-11-09 08:48:27,530 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 08:48:27,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:48:27,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:48:27,531 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:48:27,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:46:15" (3/4) ... [2021-11-09 08:48:27,534 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 08:48:27,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 08:48:27,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:48:27,594 INFO L168 Benchmark]: Toolchain (without parser) took 133700.35 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 70.1 MB in the beginning and 48.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:48:27,594 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 113.2 MB. Free memory was 87.5 MB in the beginning and 87.5 MB in the end (delta: 68.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:48:27,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.43 ms. Allocated memory is still 113.2 MB. Free memory was 70.0 MB in the beginning and 79.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-11-09 08:48:27,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.99 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 76.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:48:27,596 INFO L168 Benchmark]: Boogie Preprocessor took 79.57 ms. Allocated memory is still 113.2 MB. Free memory was 76.3 MB in the beginning and 74.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:48:27,597 INFO L168 Benchmark]: RCFGBuilder took 1083.29 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 74.1 MB in the beginning and 114.5 MB in the end (delta: -40.4 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. [2021-11-09 08:48:27,598 INFO L168 Benchmark]: BuchiAutomizer took 131859.80 ms. Allocated memory is still 144.7 MB. Free memory was 114.5 MB in the beginning and 50.2 MB in the end (delta: 64.3 MB). Peak memory consumption was 88.4 MB. Max. memory is 16.1 GB. [2021-11-09 08:48:27,598 INFO L168 Benchmark]: Witness Printer took 61.60 ms. Allocated memory is still 144.7 MB. Free memory was 50.2 MB in the beginning and 48.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:48:27,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 113.2 MB. Free memory was 87.5 MB in the beginning and 87.5 MB in the end (delta: 68.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 515.43 ms. Allocated memory is still 113.2 MB. Free memory was 70.0 MB in the beginning and 79.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.99 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 76.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.57 ms. Allocated memory is still 113.2 MB. Free memory was 76.3 MB in the beginning and 74.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1083.29 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 74.1 MB in the beginning and 114.5 MB in the end (delta: -40.4 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 131859.80 ms. Allocated memory is still 144.7 MB. Free memory was 114.5 MB in the beginning and 50.2 MB in the end (delta: 64.3 MB). Peak memory consumption was 88.4 MB. Max. memory is 16.1 GB. * Witness Printer took 61.60 ms. Allocated memory is still 144.7 MB. Free memory was 50.2 MB in the beginning and 48.1 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 131.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 131.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 212 SDtfs, 178 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 229]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4606} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=4606, NULL=4609, NULL=0, NULL=4631, NULL=0, NULL=4627, NULL=4630, methaneLevelCritical=0, NULL=4611, tmp___0=0, tmp=0, retValue_acc=0, NULL=0, NULL=4633, NULL=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@427f0d44=0, NULL=0, NULL=0, NULL=4617, tmp___0=0, NULL=4618, NULL=4608, cleanupTimeShifts=4, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bd496b=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@762db48=0, NULL=4616, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2091ca29=0, NULL=4619, head=0, pumpRunning=0, retValue_acc=1, \result=0, NULL=4613, NULL=4629, tmp=1, NULL=0, NULL=0, NULL=4624, \result=1, NULL=4625, tmp=1, NULL=4620, NULL=0, NULL=0, tmp=1, NULL=4612, NULL=0, NULL=0, NULL=4634, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=74, NULL=0, NULL=4623, tmp___0=0, NULL=4622, splverifierCounter=0, NULL=0, NULL=4626, NULL=4614, NULL=4610, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@208435d1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7893b5df=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@123b8341=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a612c3f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b380d9=0, tmp=0, head=0, NULL=0, NULL=0, NULL=4621, NULL=0, NULL=0, NULL=4607, NULL=0, NULL=0, NULL=0, NULL=4632, NULL=4615, NULL=4628} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L79] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L452] int waterLevel = 1; [L453] int methaneLevelCritical = 0; [L724] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L160] int retValue_acc ; [L161] int tmp ; [L209] int retValue_acc ; [L212] retValue_acc = 1 [L213] return (retValue_acc); [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) [L220] int splverifierCounter ; [L221] int tmp ; [L222] int tmp___0 ; [L223] int tmp___1 ; [L224] int tmp___2 ; [L227] splverifierCounter = 0 Loop: [L229] COND TRUE 1 [L231] COND TRUE splverifierCounter < 4 [L237] tmp = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp)) [L247] tmp___0 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___0)) [L257] tmp___2 = __VERIFIER_nondet_int() [L259] COND TRUE \read(tmp___2) [L447] systemActive = 1 [L299] COND FALSE !(\read(pumpRunning)) [L306] COND TRUE \read(systemActive) [L328] int tmp ; [L331] COND TRUE ! pumpRunning [L425] int retValue_acc ; [L426] int tmp ; [L427] int tmp___0 ; [L532] int retValue_acc ; [L535] COND TRUE waterLevel < 2 [L536] retValue_acc = 1 [L537] return (retValue_acc); [L431] tmp = isHighWaterSensorDry() [L433] COND TRUE \read(tmp) [L434] tmp___0 = 0 [L438] retValue_acc = tmp___0 [L439] return (retValue_acc); [L333] tmp = isHighWaterLevel() [L335] COND FALSE !(\read(tmp)) [L54] int tmp ; [L55] int tmp___0 ; [L523] int retValue_acc ; [L526] retValue_acc = waterLevel [L527] return (retValue_acc); [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 08:48:27,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82fc41-25fc-4ea5-9ab3-ae9733baa3ae/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)