./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt --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 15f9bfbb11bcf46fb604afe26b15207926ff78e9 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-dev-4e77c04 [2021-10-13 01:00:05,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:00:05,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:00:05,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:00:05,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:00:05,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:00:05,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:00:05,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:00:05,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:00:05,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:00:05,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:00:05,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:00:05,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:00:05,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:00:05,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:00:05,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:00:05,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:00:05,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:00:05,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:00:05,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:00:05,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:00:05,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:00:05,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:00:05,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:00:05,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:00:05,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:00:05,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:00:05,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:00:05,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:00:05,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:00:05,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:00:05,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:00:05,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:00:05,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:00:05,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:00:05,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:00:05,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:00:05,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:00:05,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:00:05,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:00:05,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:00:05,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:00:05,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:00:05,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:00:05,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:00:05,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:00:05,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:00:05,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:00:05,631 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:00:05,632 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:00:05,632 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:00:05,632 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:00:05,632 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:00:05,632 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:00:05,633 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:00:05,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:00:05,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:00:05,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:00:05,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:00:05,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:00:05,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:00:05,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:00:05,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:00:05,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:00:05,635 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:00:05,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:00:05,635 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:00:05,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:00:05,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:00:05,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:00:05,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:00:05,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:00:05,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:00:05,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:00:05,638 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:00:05,638 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_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15f9bfbb11bcf46fb604afe26b15207926ff78e9 [2021-10-13 01:00:05,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:00:05,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:00:05,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:00:05,945 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:00:05,946 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:00:05,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2021-10-13 01:00:06,028 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/data/4b23474aa/cad7a0bd2f4642e8b34d2030b7a986b0/FLAG0681f8ef7 [2021-10-13 01:00:06,534 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:00:06,534 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2021-10-13 01:00:06,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/data/4b23474aa/cad7a0bd2f4642e8b34d2030b7a986b0/FLAG0681f8ef7 [2021-10-13 01:00:06,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/data/4b23474aa/cad7a0bd2f4642e8b34d2030b7a986b0 [2021-10-13 01:00:06,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:00:06,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:00:06,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:00:06,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:00:06,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:00:06,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:00:06" (1/1) ... [2021-10-13 01:00:06,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27458691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:06, skipping insertion in model container [2021-10-13 01:00:06,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:00:06" (1/1) ... [2021-10-13 01:00:06,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:00:06,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:00:07,271 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_6800d527-ef83-42c7-9eb3-92e83a8bb577/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c[17387,17400] [2021-10-13 01:00:07,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:00:07,291 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:00:07,369 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_6800d527-ef83-42c7-9eb3-92e83a8bb577/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c[17387,17400] [2021-10-13 01:00:07,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:00:07,388 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:00:07,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07 WrapperNode [2021-10-13 01:00:07,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:00:07,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:00:07,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:00:07,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:00:07,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:00:07,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:00:07,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:00:07,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:00:07,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:00:07,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:00:07,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:00:07,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:00:07,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (1/1) ... [2021-10-13 01:00:07,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:00:07,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:00:07,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:00:07,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:00:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:00:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:00:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:00:07,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:00:08,589 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:00:08,590 INFO L299 CfgBuilder]: Removed 112 assume(true) statements. [2021-10-13 01:00:08,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:00:08 BoogieIcfgContainer [2021-10-13 01:00:08,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:00:08,593 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:00:08,593 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:00:08,597 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:00:08,598 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:00:08,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:00:06" (1/3) ... [2021-10-13 01:00:08,599 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e559dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:00:08, skipping insertion in model container [2021-10-13 01:00:08,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:00:08,600 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:00:07" (2/3) ... [2021-10-13 01:00:08,600 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e559dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:00:08, skipping insertion in model container [2021-10-13 01:00:08,601 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:00:08,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:00:08" (3/3) ... [2021-10-13 01:00:08,602 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product06.cil.c [2021-10-13 01:00:08,649 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:00:08,649 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:00:08,649 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:00:08,650 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:00:08,650 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:00:08,650 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:00:08,650 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:00:08,650 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:00:08,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 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) [2021-10-13 01:00:08,699 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 01:00:08,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:00:08,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:00:08,707 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:08,708 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:08,708 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:00:08,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 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) [2021-10-13 01:00:08,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 01:00:08,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:00:08,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:00:08,717 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:08,717 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:08,723 INFO L791 eck$LassoCheckResult]: Stem: 63#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 48#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 12#L153true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 17#L161true main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 47#L470true assume 0 != main_~tmp~2; 46#L445true ~switchedOnBeforeTS~0 := 0; 9#L491true havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, 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; 30#L512-1true [2021-10-13 01:00:08,724 INFO L793 eck$LassoCheckResult]: Loop: 30#L512-1true assume !false; 3#L180true assume test_~splverifierCounter~0 < 4; 32#L181true test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 24#L189true assume !(0 != test_~tmp~0); 51#L189-1true test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 61#L199true assume !(0 != test_~tmp___0~0); 74#L199-1true test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 50#L209true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 67#L217-2true havoc __utac_acc__Specification5_spec__2_#t~ret41;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 14#L337true __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 58#L501true assume !(0 != ~pumpRunning~0); 62#L252true assume !(0 != ~systemActive~0); 7#L259true havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 27#L123true __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 19#L512true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 30#L512-1true [2021-10-13 01:00:08,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:08,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 01:00:08,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:08,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059848094] [2021-10-13 01:00:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:08,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:09,128 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:00:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:09,376 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:00:09,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:09,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1011068557, now seen corresponding path program 1 times [2021-10-13 01:00:09,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:09,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001383846] [2021-10-13 01:00:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:09,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:00:09,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:00:09,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001383846] [2021-10-13 01:00:09,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001383846] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:00:09,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:00:09,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:00:09,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703622803] [2021-10-13 01:00:09,487 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:00:09,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:00:09,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:00:09,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:00:09,508 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-13 01:00:09,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:00:09,558 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2021-10-13 01:00:09,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:00:09,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 101 transitions. [2021-10-13 01:00:09,577 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 01:00:09,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2021-10-13 01:00:09,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-13 01:00:09,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-13 01:00:09,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2021-10-13 01:00:09,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:00:09,588 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-13 01:00:09,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2021-10-13 01:00:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-13 01:00:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 67 states have internal predecessors, (93), 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) [2021-10-13 01:00:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2021-10-13 01:00:09,630 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-13 01:00:09,630 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-13 01:00:09,631 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:00:09,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2021-10-13 01:00:09,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 01:00:09,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:00:09,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:00:09,638 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:09,638 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:09,639 INFO L791 eck$LassoCheckResult]: Stem: 225#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 218#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 175#L153 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 176#L161 main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 183#L470 assume 0 != main_~tmp~2; 217#L445 ~switchedOnBeforeTS~0 := 0; 169#L491 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, 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; 170#L512-1 [2021-10-13 01:00:09,640 INFO L793 eck$LassoCheckResult]: Loop: 170#L512-1 assume !false; 161#L180 assume test_~splverifierCounter~0 < 4; 162#L181 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 191#L189 assume !(0 != test_~tmp~0); 193#L189-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 220#L199 assume !(0 != test_~tmp___0~0); 197#L199-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 219#L209 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 195#L217-2 havoc __utac_acc__Specification5_spec__2_#t~ret41;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 177#L337 __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 178#L501 assume !(0 != ~pumpRunning~0); 167#L252 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 224#L284 assume !(0 != ~pumpRunning~0); 164#L259 havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 165#L123 __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 184#L512 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 170#L512-1 [2021-10-13 01:00:09,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:09,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 01:00:09,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:09,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015343747] [2021-10-13 01:00:09,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:09,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:09,769 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:00:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:09,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:00:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:09,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1257825731, now seen corresponding path program 1 times [2021-10-13 01:00:09,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:09,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694126466] [2021-10-13 01:00:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:09,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:09,967 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:00:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:09,982 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:00:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:09,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1083065097, now seen corresponding path program 1 times [2021-10-13 01:00:09,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:09,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702770067] [2021-10-13 01:00:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:09,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:00:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:00:10,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:00:10,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702770067] [2021-10-13 01:00:10,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702770067] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:00:10,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:00:10,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:00:10,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849800607] [2021-10-13 01:00:10,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:00:10,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:00:10,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:00:10,327 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-10-13 01:00:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:00:10,474 INFO L93 Difference]: Finished difference Result 182 states and 252 transitions. [2021-10-13 01:00:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:00:10,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 252 transitions. [2021-10-13 01:00:10,479 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2021-10-13 01:00:10,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 252 transitions. [2021-10-13 01:00:10,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2021-10-13 01:00:10,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2021-10-13 01:00:10,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 252 transitions. [2021-10-13 01:00:10,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:00:10,491 INFO L681 BuchiCegarLoop]: Abstraction has 182 states and 252 transitions. [2021-10-13 01:00:10,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 252 transitions. [2021-10-13 01:00:10,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 129. [2021-10-13 01:00:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 128 states have internal predecessors, (175), 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) [2021-10-13 01:00:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2021-10-13 01:00:10,513 INFO L704 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-13 01:00:10,513 INFO L587 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-13 01:00:10,514 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:00:10,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 175 transitions. [2021-10-13 01:00:10,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-10-13 01:00:10,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:00:10,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:00:10,518 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:10,518 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:00:10,518 INFO L791 eck$LassoCheckResult]: Stem: 503#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 491#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 441#L153 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 442#L161 main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 449#L470 assume 0 != main_~tmp~2; 490#L445 ~switchedOnBeforeTS~0 := 0; 435#L491 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, 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; 436#L512-1 [2021-10-13 01:00:10,519 INFO L793 eck$LassoCheckResult]: Loop: 436#L512-1 assume !false; 425#L180 assume test_~splverifierCounter~0 < 4; 426#L181 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 542#L189 assume !(0 != test_~tmp~0); 541#L189-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 540#L199 assume !(0 != test_~tmp___0~0); 538#L199-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 537#L209 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 506#L217-2 havoc __utac_acc__Specification5_spec__2_#t~ret41;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 443#L337 __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 444#L501 assume !(0 != ~pumpRunning~0); 431#L252 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 502#L284 assume !(0 != ~pumpRunning~0); 471#L259 havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 465#L123 __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 452#L512 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 453#L337-1 __utac_acc__Specification5_spec__3_#t~ret43 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 454#L516 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 436#L512-1 [2021-10-13 01:00:10,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:10,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 01:00:10,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:10,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81981250] [2021-10-13 01:00:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:10,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:10,582 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:00:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:10,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:00:10,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:10,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1884702974, now seen corresponding path program 1 times [2021-10-13 01:00:10,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:10,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62869012] [2021-10-13 01:00:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:10,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:10,642 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:00:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:10,649 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:00:10,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:00:10,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1443458244, now seen corresponding path program 1 times [2021-10-13 01:00:10,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:00:10,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768366559] [2021-10-13 01:00:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:00:10,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:00:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:10,710 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:00:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:00:10,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:01:12,840 WARN L207 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 01:02:10,987 WARN L207 SmtUtils]: Spent 28.19 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 01:02:11,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:02:11 BoogieIcfgContainer [2021-10-13 01:02:11,128 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:02:11,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:02:11,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:02:11,129 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:02:11,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:00:08" (3/4) ... [2021-10-13 01:02:11,132 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:02:11,179 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:02:11,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:02:11,181 INFO L168 Benchmark]: Toolchain (without parser) took 124328.46 ms. Allocated memory was 96.5 MB in the beginning and 151.0 MB in the end (delta: 54.5 MB). Free memory was 58.6 MB in the beginning and 83.1 MB in the end (delta: -24.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:11,181 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 76.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:02:11,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.20 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 84.9 MB in the end (delta: -26.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:11,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.40 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 82.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:11,183 INFO L168 Benchmark]: Boogie Preprocessor took 62.86 ms. Allocated memory is still 117.4 MB. Free memory was 82.0 MB in the beginning and 79.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:11,184 INFO L168 Benchmark]: RCFGBuilder took 1062.37 ms. Allocated memory is still 117.4 MB. Free memory was 79.9 MB in the beginning and 88.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:11,184 INFO L168 Benchmark]: BuchiAutomizer took 122535.48 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 88.8 MB in the beginning and 85.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 96.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:11,185 INFO L168 Benchmark]: Witness Printer took 50.79 ms. Allocated memory is still 151.0 MB. Free memory was 85.2 MB in the beginning and 83.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:02:11,188 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 96.5 MB. Free memory is still 76.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.20 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 84.9 MB in the end (delta: -26.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.40 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 82.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.86 ms. Allocated memory is still 117.4 MB. Free memory was 82.0 MB in the beginning and 79.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1062.37 ms. Allocated memory is still 117.4 MB. Free memory was 79.9 MB in the beginning and 88.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122535.48 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 88.8 MB in the beginning and 85.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 96.2 MB. Max. memory is 16.1 GB. * Witness Printer took 50.79 ms. Allocated memory is still 151.0 MB. Free memory was 85.2 MB in the beginning and 83.1 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 5 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 122.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 48.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 53 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 213 SDtfs, 361 SDslu, 268 SDs, 0 SdLazy, 68 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 86.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 179]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2720} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@757b129=0, NULL=0, NULL=0, NULL=0, NULL=2740, NULL=0, NULL=2720, NULL=2734, retValue_acc=0, NULL=2724, NULL=2722, NULL=2736, methaneLevelCritical=0, NULL=2743, NULL=2744, tmp=1, NULL=0, NULL=2728, NULL=0, NULL=0, tmp___1=0, NULL=2721, NULL=0, NULL=0, NULL=0, NULL=2733, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=2742, NULL=2737, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@863ea43=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@770f887f=0, NULL=2735, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=2741, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@161f72cb=0, tmp___0=0, NULL=2747, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp___0=0, NULL=2738, NULL=2732, tmp=1, NULL=0, NULL=0, NULL=0, NULL=2729, retValue_acc=1, NULL=2746, NULL=0, NULL=0, NULL=2731, NULL=0, NULL=0, NULL=2726, NULL=0, tmp___2=65, NULL=0, splverifierCounter=0, NULL=0, NULL=2730, NULL=2748, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65f49061=0, NULL=2745, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d4033c=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ad7dff=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66f8106e=65, NULL=2727, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e7e5c8c=0, NULL=0, NULL=0, NULL=2723, NULL=0, NULL=2739, NULL=2725, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L240] int pumpRunning = 0; [L241] int systemActive = 1; [L386] int cleanupTimeShifts = 4; [L485] int switchedOnBeforeTS ; [L703] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L461] int retValue_acc ; [L462] int tmp ; [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L468] tmp = valid_product() [L470] COND TRUE \read(tmp) [L490] switchedOnBeforeTS = 0 [L170] int splverifierCounter ; [L171] int tmp ; [L172] int tmp___0 ; [L173] int tmp___1 ; [L174] int tmp___2 ; [L177] splverifierCounter = 0 Loop: [L179] COND TRUE 1 [L181] COND TRUE splverifierCounter < 4 [L187] tmp = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp)) [L197] tmp___0 = __VERIFIER_nondet_int() [L199] COND FALSE !(\read(tmp___0)) [L207] tmp___2 = __VERIFIER_nondet_int() [L209] COND TRUE \read(tmp___2) [L381] systemActive = 1 [L333] int retValue_acc ; [L336] retValue_acc = pumpRunning [L337] return (retValue_acc); [L499] switchedOnBeforeTS = isPumpRunning() [L252] COND FALSE !(\read(pumpRunning)) [L259] COND TRUE \read(systemActive) [L281] int tmp ; [L284] COND FALSE !(\read(pumpRunning)) [L505] int tmp ; [L506] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L510] tmp = getWaterLevel() [L512] COND TRUE tmp != 2 [L333] int retValue_acc ; [L336] retValue_acc = pumpRunning [L337] return (retValue_acc); [L514] tmp___0 = isPumpRunning() [L516] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:02:11,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6800d527-ef83-42c7-9eb3-92e83a8bb577/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...