./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg --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 d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-28 09:45:29,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:45:29,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:45:29,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:45:29,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:45:29,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:45:29,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:45:29,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:45:29,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:45:29,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:45:29,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:45:29,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:45:29,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:45:29,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:45:29,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:45:29,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:45:29,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:45:29,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:45:29,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:45:29,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:45:29,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:45:29,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:45:29,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:45:29,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:45:29,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:45:29,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:45:29,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:45:29,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:45:29,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:45:29,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:45:29,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:45:29,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:45:29,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:45:29,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:45:29,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:45:29,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:45:29,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:45:29,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:45:29,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:45:29,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:45:29,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:45:29,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:45:29,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:45:29,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:45:29,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:45:29,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:45:29,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:45:29,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:45:29,596 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:45:29,596 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:45:29,597 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:45:29,597 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:45:29,598 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:45:29,599 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:45:29,599 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:45:29,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:45:29,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:45:29,600 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:45:29,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:45:29,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:45:29,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:45:29,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:45:29,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:45:29,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:45:29,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:45:29,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:45:29,603 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:45:29,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:45:29,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:45:29,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:45:29,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:45:29,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:45:29,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:45:29,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:45:29,609 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:45:29,610 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_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2021-10-28 09:45:29,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:45:29,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:45:29,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:45:29,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:45:29,987 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:45:29,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-10-28 09:45:30,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/data/28ed04ac2/956d36f487374e53b823bf64aa930b3a/FLAGb26719e0b [2021-10-28 09:45:30,735 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:45:30,751 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-10-28 09:45:30,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/data/28ed04ac2/956d36f487374e53b823bf64aa930b3a/FLAGb26719e0b [2021-10-28 09:45:31,003 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/data/28ed04ac2/956d36f487374e53b823bf64aa930b3a [2021-10-28 09:45:31,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:45:31,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:45:31,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:45:31,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:45:31,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:45:31,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f74257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31, skipping insertion in model container [2021-10-28 09:45:31,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:45:31,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:45:31,507 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_2c737884-488a-49ed-b5b4-6ca98254551e/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2021-10-28 09:45:31,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:45:31,601 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:45:31,663 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_2c737884-488a-49ed-b5b4-6ca98254551e/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2021-10-28 09:45:31,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:45:31,735 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:45:31,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31 WrapperNode [2021-10-28 09:45:31,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:45:31,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:45:31,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:45:31,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:45:31,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:45:31,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:45:31,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:45:31,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:45:31,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:45:31,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:45:31,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:45:31,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:45:31,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (1/1) ... [2021-10-28 09:45:31,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:45:31,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:45:31,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:45:32,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:45:32,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:45:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:45:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:45:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:45:33,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:45:33,487 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-10-28 09:45:33,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:45:33 BoogieIcfgContainer [2021-10-28 09:45:33,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:45:33,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:45:33,495 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:45:33,501 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:45:33,509 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:45:33,509 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:45:31" (1/3) ... [2021-10-28 09:45:33,511 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a47b08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:45:33, skipping insertion in model container [2021-10-28 09:45:33,512 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:45:33,512 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:45:31" (2/3) ... [2021-10-28 09:45:33,512 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a47b08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:45:33, skipping insertion in model container [2021-10-28 09:45:33,513 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:45:33,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:45:33" (3/3) ... [2021-10-28 09:45:33,515 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2021-10-28 09:45:33,590 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:45:33,591 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:45:33,591 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:45:33,591 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:45:33,591 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:45:33,591 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:45:33,592 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:45:33,592 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:45:33,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-28 09:45:33,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-28 09:45:33,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:45:33,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:45:33,676 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:45:33,677 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:45:33,677 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:45:33,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-28 09:45:33,690 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-28 09:45:33,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:45:33,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:45:33,691 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:45:33,692 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:45:33,698 INFO L791 eck$LassoCheckResult]: Stem: 102#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 28#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 3#L580true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 80#L588true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 77#L535true assume 0 != main_~tmp~4; 26#L508true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L427-1true [2021-10-28 09:45:33,700 INFO L793 eck$LassoCheckResult]: Loop: 55#L427-1true assume !false; 103#L920true assume test_~splverifierCounter~0 < 4; 95#L921true test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 66#L929true assume !(0 != test_~tmp~9); 100#L929-1true test_~tmp___0~3 := test_#t~nondet78;havoc test_#t~nondet78; 115#L939true assume !(0 != test_~tmp___0~3); 15#L939-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 29#L949true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 17#L957-2true assume !(0 != ~pumpRunning~0); 31#L711true assume !(0 != ~systemActive~0); 81#L718true havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;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; 22#L673true __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 79#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 55#L427-1true [2021-10-28 09:45:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:33,707 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 09:45:33,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:33,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667574273] [2021-10-28 09:45:33,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:33,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:34,137 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:34,382 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:45:34,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1678820861, now seen corresponding path program 1 times [2021-10-28 09:45:34,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:34,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526146167] [2021-10-28 09:45:34,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:34,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:45:34,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:45:34,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:45:34,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526146167] [2021-10-28 09:45:34,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526146167] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:45:34,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:45:34,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:45:34,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708565210] [2021-10-28 09:45:34,556 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:45:34,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:45:34,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:45:34,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:45:34,593 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-28 09:45:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:45:34,670 INFO L93 Difference]: Finished difference Result 114 states and 164 transitions. [2021-10-28 09:45:34,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:45:34,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 164 transitions. [2021-10-28 09:45:34,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 09:45:34,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2021-10-28 09:45:34,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2021-10-28 09:45:34,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2021-10-28 09:45:34,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2021-10-28 09:45:34,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:45:34,714 INFO L681 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-28 09:45:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2021-10-28 09:45:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-28 09:45:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.4579439252336448) internal successors, (156), 106 states have internal predecessors, (156), 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) [2021-10-28 09:45:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2021-10-28 09:45:34,754 INFO L704 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-28 09:45:34,754 INFO L587 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-28 09:45:34,755 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:45:34,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2021-10-28 09:45:34,762 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 09:45:34,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:45:34,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:45:34,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:45:34,764 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:45:34,764 INFO L791 eck$LassoCheckResult]: Stem: 341#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 283#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 237#L580 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 238#L588 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 332#L535 assume 0 != main_~tmp~4; 280#L508 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 281#L427-1 [2021-10-28 09:45:34,765 INFO L793 eck$LassoCheckResult]: Loop: 281#L427-1 assume !false; 313#L920 assume test_~splverifierCounter~0 < 4; 338#L921 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 321#L929 assume !(0 != test_~tmp~9); 323#L929-1 test_~tmp___0~3 := test_#t~nondet78;havoc test_#t~nondet78; 340#L939 assume !(0 != test_~tmp___0~3); 258#L939-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 259#L949 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 262#L957-2 assume !(0 != ~pumpRunning~0); 263#L711 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 287#L769 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 289#L743-1 assume !(0 == ~pumpRunning~0); 251#L718 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;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; 274#L673 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 275#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 281#L427-1 [2021-10-28 09:45:34,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:34,766 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 09:45:34,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:34,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220976083] [2021-10-28 09:45:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:34,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:34,890 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:34,975 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:45:34,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:34,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1079829887, now seen corresponding path program 1 times [2021-10-28 09:45:34,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:34,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268826685] [2021-10-28 09:45:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:34,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:45:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:45:35,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:45:35,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268826685] [2021-10-28 09:45:35,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268826685] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:45:35,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:45:35,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:45:35,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46951761] [2021-10-28 09:45:35,031 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:45:35,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:45:35,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:45:35,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:45:35,038 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 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) [2021-10-28 09:45:35,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:45:35,188 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2021-10-28 09:45:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:45:35,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2021-10-28 09:45:35,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-28 09:45:35,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2021-10-28 09:45:35,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2021-10-28 09:45:35,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2021-10-28 09:45:35,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2021-10-28 09:45:35,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:45:35,200 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-28 09:45:35,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2021-10-28 09:45:35,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-28 09:45:35,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3783783783783783) internal successors, (204), 147 states have internal predecessors, (204), 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) [2021-10-28 09:45:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2021-10-28 09:45:35,214 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-28 09:45:35,214 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-28 09:45:35,214 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:45:35,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2021-10-28 09:45:35,216 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-28 09:45:35,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:45:35,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:45:35,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:45:35,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:45:35,218 INFO L791 eck$LassoCheckResult]: Stem: 608#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 543#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 498#L580 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 499#L588 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 597#L535 assume 0 != main_~tmp~4; 540#L508 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 541#L427-1 [2021-10-28 09:45:35,219 INFO L793 eck$LassoCheckResult]: Loop: 541#L427-1 assume !false; 577#L920 assume test_~splverifierCounter~0 < 4; 604#L921 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 586#L929 assume !(0 != test_~tmp~9); 588#L929-1 test_~tmp___0~3 := test_#t~nondet78;havoc test_#t~nondet78; 607#L939 assume !(0 != test_~tmp___0~3); 519#L939-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 520#L949 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 523#L957-2 assume !(0 != ~pumpRunning~0); 524#L711 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 547#L769 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 548#L743-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 606#L681-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 600#L686-1 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 594#L871-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 595#L871-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 610#L877-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 555#L747-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 511#L718 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;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; 534#L673 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 535#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 541#L427-1 [2021-10-28 09:45:35,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:35,219 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 09:45:35,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:35,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086830213] [2021-10-28 09:45:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:35,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:35,282 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:35,383 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:45:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -246413043, now seen corresponding path program 1 times [2021-10-28 09:45:35,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:35,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636641829] [2021-10-28 09:45:35,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:35,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:35,396 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:35,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:45:35,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:45:35,408 INFO L85 PathProgramCache]: Analyzing trace with hash 209658151, now seen corresponding path program 1 times [2021-10-28 09:45:35,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:45:35,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073809733] [2021-10-28 09:45:35,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:45:35,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:45:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:35,448 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:45:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:45:35,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:53,689 WARN L207 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 09:48:20,797 WARN L207 SmtUtils]: Spent 43.76 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 09:48:20,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:48:20 BoogieIcfgContainer [2021-10-28 09:48:20,990 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:48:20,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:48:20,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:48:20,991 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:48:20,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:45:33" (3/4) ... [2021-10-28 09:48:20,996 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:48:21,092 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:48:21,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:48:21,100 INFO L168 Benchmark]: Toolchain (without parser) took 170074.37 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 71.5 MB in the beginning and 102.1 MB in the end (delta: -30.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:21,104 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 111.1 MB. Free memory is still 88.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:21,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.78 ms. Allocated memory is still 111.1 MB. Free memory was 71.4 MB in the beginning and 78.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:21,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.77 ms. Allocated memory is still 111.1 MB. Free memory was 78.0 MB in the beginning and 74.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:21,106 INFO L168 Benchmark]: Boogie Preprocessor took 86.77 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 72.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:21,107 INFO L168 Benchmark]: RCFGBuilder took 1553.61 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 71.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:21,109 INFO L168 Benchmark]: BuchiAutomizer took 167496.41 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 71.0 MB in the beginning and 104.0 MB in the end (delta: -33.0 MB). Peak memory consumption was 80.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:21,110 INFO L168 Benchmark]: Witness Printer took 107.38 ms. Allocated memory is still 140.5 MB. Free memory was 104.0 MB in the beginning and 102.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:21,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 111.1 MB. Free memory is still 88.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 700.78 ms. Allocated memory is still 111.1 MB. Free memory was 71.4 MB in the beginning and 78.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.77 ms. Allocated memory is still 111.1 MB. Free memory was 78.0 MB in the beginning and 74.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.77 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 72.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1553.61 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 71.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 167496.41 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 71.0 MB in the beginning and 104.0 MB in the end (delta: -33.0 MB). Peak memory consumption was 80.2 MB. Max. memory is 16.1 GB. * Witness Printer took 107.38 ms. Allocated memory is still 140.5 MB. Free memory was 104.0 MB in the beginning and 102.1 MB in the end (delta: 2.0 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 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 167.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 166.8s. Construction of modules took 0.1s. 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 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 319 SDtfs, 264 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 919]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=29520, NULL=1, NULL=0, NULL=29525, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b8f979d=0, NULL=0, NULL=29511, tmp___1=0, tmp=0, NULL=29518, NULL=0, NULL=29530, NULL=29532, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39127851=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37fee51a=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=29510, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=29513, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, retValue_acc=0, tmp=1, NULL=0, tmp=1, tmp___0=0, retValue_acc=1, NULL=29517, NULL=29533, head=0, NULL=0, NULL=0, tmp=0, NULL=29521, NULL=0, NULL=0, NULL=29524, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@391d69f8=0, NULL=0, NULL=0, retValue_acc=0, NULL=29514, NULL=29528, NULL=29529, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f4c2ade=0, tmp___0=0, NULL=0, NULL=0, tmp___0=0, NULL=29515, NULL=29516, NULL=29534, tmp=0, NULL=29526, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a640958=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@94a3e8a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5444349=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2811d03e=0, \result=0, NULL=29522, NULL=0, NULL=0, NULL=29537, NULL=29523, \result=0, NULL=29519, NULL=0, NULL=29531, retValue_acc=1, NULL=29536, tmp___2=78, splverifierCounter=0, NULL=0, NULL=29535, NULL=29512, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@449ea45=0, NULL=29527} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L445] int cleanupTimeShifts = 4; [L598] int waterLevel = 1; [L599] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L526] int retValue_acc ; [L527] int tmp ; [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L533] tmp = valid_product() [L535] COND TRUE \read(tmp) [L910] int splverifierCounter ; [L911] int tmp ; [L912] int tmp___0 ; [L913] int tmp___1 ; [L914] int tmp___2 ; [L917] splverifierCounter = 0 Loop: [L919] COND TRUE 1 [L921] COND TRUE splverifierCounter < 4 [L927] tmp = __VERIFIER_nondet_int() [L929] COND FALSE !(\read(tmp)) [L937] tmp___0 = __VERIFIER_nondet_int() [L939] COND FALSE !(\read(tmp___0)) [L947] tmp___2 = __VERIFIER_nondet_int() [L949] COND TRUE \read(tmp___2) [L904] systemActive = 1 [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L678] int retValue_acc ; [L681] COND TRUE waterLevel < 2 [L682] retValue_acc = 1 [L683] return (retValue_acc); [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L420] int tmp ; [L421] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = waterLevel [L673] return (retValue_acc); [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:48:21,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c737884-488a-49ed-b5b4-6ca98254551e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...