./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8 --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 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:37:15,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:37:15,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:37:15,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:37:15,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:37:15,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:37:15,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:37:15,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:37:15,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:37:15,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:37:15,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:37:15,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:37:15,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:37:15,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:37:15,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:37:15,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:37:15,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:37:15,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:37:15,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:37:15,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:37:15,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:37:15,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:37:15,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:37:15,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:37:15,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:37:15,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:37:15,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:37:15,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:37:15,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:37:15,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:37:15,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:37:15,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:37:15,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:37:15,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:37:15,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:37:15,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:37:15,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:37:15,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:37:15,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:37:15,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:37:15,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:37:15,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 12:37:15,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:37:15,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:37:15,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:37:15,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:37:15,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:37:15,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:37:15,308 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:37:15,308 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:37:15,308 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:37:15,308 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:37:15,310 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:37:15,310 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:37:15,311 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:37:15,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:37:15,311 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:37:15,311 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:37:15,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:37:15,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:37:15,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:37:15,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:37:15,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:37:15,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:37:15,313 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:37:15,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:37:15,316 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:37:15,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:37:15,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:37:15,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:37:15,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:37:15,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:37:15,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:37:15,319 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:37:15,319 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_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 [2022-11-16 12:37:15,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:37:15,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:37:15,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:37:15,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:37:15,732 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:37:15,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2022-11-16 12:37:15,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/data/cb1ebc66c/59b967ef2a4a4d77b9520e4540727eeb/FLAG94471fbc0 [2022-11-16 12:37:16,550 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:37:16,551 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2022-11-16 12:37:16,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/data/cb1ebc66c/59b967ef2a4a4d77b9520e4540727eeb/FLAG94471fbc0 [2022-11-16 12:37:16,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/data/cb1ebc66c/59b967ef2a4a4d77b9520e4540727eeb [2022-11-16 12:37:16,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:37:16,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:37:16,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:16,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:37:16,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:37:16,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:16" (1/1) ... [2022-11-16 12:37:16,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6755b431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:16, skipping insertion in model container [2022-11-16 12:37:16,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:16" (1/1) ... [2022-11-16 12:37:16,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:37:16,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:37:17,281 WARN L229 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_1c9b85a7-084f-425c-b5b7-f375e1ec842f/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2022-11-16 12:37:17,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:17,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:37:17,437 WARN L229 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_1c9b85a7-084f-425c-b5b7-f375e1ec842f/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2022-11-16 12:37:17,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:17,461 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:37:17,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17 WrapperNode [2022-11-16 12:37:17,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:17,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:17,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:37:17,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:37:17,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,557 INFO L138 Inliner]: procedures = 53, calls = 154, calls flagged for inlining = 51, calls inlined = 80, statements flattened = 614 [2022-11-16 12:37:17,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:17,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:37:17,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:37:17,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:37:17,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:37:17,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:37:17,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:37:17,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:37:17,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (1/1) ... [2022-11-16 12:37:17,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:37:17,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:17,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:37:17,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:37:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:37:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:37:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:37:17,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:37:17,888 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:37:17,892 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:37:18,647 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:37:18,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:37:18,663 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:37:18,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:18 BoogieIcfgContainer [2022-11-16 12:37:18,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:37:18,670 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:37:18,670 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:37:18,675 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:37:18,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:37:18,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:37:16" (1/3) ... [2022-11-16 12:37:18,678 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b8504f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:37:18, skipping insertion in model container [2022-11-16 12:37:18,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:37:18,678 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:17" (2/3) ... [2022-11-16 12:37:18,679 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b8504f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:37:18, skipping insertion in model container [2022-11-16 12:37:18,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:37:18,679 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:18" (3/3) ... [2022-11-16 12:37:18,681 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2022-11-16 12:37:18,772 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:37:18,772 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:37:18,772 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:37:18,772 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:37:18,772 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:37:18,772 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:37:18,772 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:37:18,773 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:37:18,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:18,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-11-16 12:37:18,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:37:18,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:37:18,820 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:18,820 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:18,820 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:37:18,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:18,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-11-16 12:37:18,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:37:18,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:37:18,833 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:18,834 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:18,841 INFO L748 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 40#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 5#L931true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 97#L924true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 162#L939true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 63#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 143#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 123#L716-2true [2022-11-16 12:37:18,842 INFO L750 eck$LassoCheckResult]: Loop: 123#L716-2true assume !false; 19#L717true assume test_~splverifierCounter~0#1 < 4; 106#L718true test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 105#L726true assume !(0 != test_~tmp~7#1); 81#L726-2true test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 36#L736true assume !(0 != test_~tmp___0~1#1); 55#L736-2true test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 98#L746true assume 0 != test_~tmp___2~0#1; 79#L752-2true assume { :begin_inline_timeShift } true; 100#L535true assume !(0 != ~pumpRunning~0); 153#L535-2true assume !(0 != ~systemActive~0); 61#L542-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 28#L815-1true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 23#L884true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 94#L890-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 44#L552true assume { :end_inline_timeShift } true; 123#L716-2true [2022-11-16 12:37:18,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-16 12:37:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:18,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908192430] [2022-11-16 12:37:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:18,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:18,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:19,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:19,039 INFO L85 PathProgramCache]: Analyzing trace with hash 975691414, now seen corresponding path program 1 times [2022-11-16 12:37:19,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:19,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66663398] [2022-11-16 12:37:19,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:19,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:19,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:19,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:19,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1963856806, now seen corresponding path program 1 times [2022-11-16 12:37:19,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:19,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379628549] [2022-11-16 12:37:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:19,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:19,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379628549] [2022-11-16 12:37:19,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379628549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:19,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:19,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864355685] [2022-11-16 12:37:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:19,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:19,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:19,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:19,631 INFO L87 Difference]: Start difference. First operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2022-11-16 12:37:19,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:37:19,755 INFO L93 Difference]: Finished difference Result 159 states and 208 transitions. [2022-11-16 12:37:19,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 208 transitions. [2022-11-16 12:37:19,767 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-11-16 12:37:19,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 149 states and 198 transitions. [2022-11-16 12:37:19,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2022-11-16 12:37:19,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2022-11-16 12:37:19,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 198 transitions. [2022-11-16 12:37:19,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:19,781 INFO L218 hiAutomatonCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-11-16 12:37:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 198 transitions. [2022-11-16 12:37:19,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-16 12:37:19,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 198 transitions. [2022-11-16 12:37:19,823 INFO L240 hiAutomatonCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-11-16 12:37:19,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:37:19,828 INFO L428 stractBuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-11-16 12:37:19,828 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:37:19,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 198 transitions. [2022-11-16 12:37:19,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-11-16 12:37:19,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:37:19,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:37:19,833 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:19,833 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:19,833 INFO L748 eck$LassoCheckResult]: Stem: 486#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 409#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 343#L931 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 344#L924 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 465#L939 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 438#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 439#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 413#L716-2 [2022-11-16 12:37:19,834 INFO L750 eck$LassoCheckResult]: Loop: 413#L716-2 assume !false; 371#L717 assume test_~splverifierCounter~0#1 < 4; 372#L718 test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 468#L726 assume !(0 != test_~tmp~7#1); 460#L726-2 test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 398#L736 assume !(0 != test_~tmp___0~1#1); 400#L736-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 430#L746 assume 0 != test_~tmp___2~0#1; 454#L752-2 assume { :begin_inline_timeShift } true; 455#L535 assume !(0 != ~pumpRunning~0); 466#L535-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 463#L593 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 448#L567-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 449#L559-3 assume { :end_inline_processEnvironment__wrappee__base } true; 346#L567-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 435#L593-1 assume { :end_inline_processEnvironment } true; 436#L542-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 387#L815-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 377#L884 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 379#L890-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 412#L552 assume { :end_inline_timeShift } true; 413#L716-2 [2022-11-16 12:37:19,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:19,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-16 12:37:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:19,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66517471] [2022-11-16 12:37:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:19,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:19,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:19,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:19,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1379362741, now seen corresponding path program 1 times [2022-11-16 12:37:19,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:19,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684338915] [2022-11-16 12:37:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:19,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:19,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:19,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684338915] [2022-11-16 12:37:19,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684338915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:19,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:19,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:37:19,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937522527] [2022-11-16 12:37:19,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:19,957 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 12:37:19,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:19,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:19,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:19,959 INFO L87 Difference]: Start difference. First operand 149 states and 198 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:37:20,072 INFO L93 Difference]: Finished difference Result 210 states and 269 transitions. [2022-11-16 12:37:20,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 269 transitions. [2022-11-16 12:37:20,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2022-11-16 12:37:20,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 269 transitions. [2022-11-16 12:37:20,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2022-11-16 12:37:20,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2022-11-16 12:37:20,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 269 transitions. [2022-11-16 12:37:20,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:20,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 210 states and 269 transitions. [2022-11-16 12:37:20,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 269 transitions. [2022-11-16 12:37:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-16 12:37:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 209 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 269 transitions. [2022-11-16 12:37:20,094 INFO L240 hiAutomatonCegarLoop]: Abstraction has 210 states and 269 transitions. [2022-11-16 12:37:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:20,096 INFO L428 stractBuchiCegarLoop]: Abstraction has 210 states and 269 transitions. [2022-11-16 12:37:20,096 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 12:37:20,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 269 transitions. [2022-11-16 12:37:20,098 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2022-11-16 12:37:20,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:37:20,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:37:20,100 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,100 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,100 INFO L748 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 774#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 708#L931 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 709#L924 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 835#L939 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 803#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 804#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 778#L716-2 [2022-11-16 12:37:20,101 INFO L750 eck$LassoCheckResult]: Loop: 778#L716-2 assume !false; 736#L717 assume test_~splverifierCounter~0#1 < 4; 737#L718 test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 838#L726 assume !(0 != test_~tmp~7#1); 824#L726-2 test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 763#L736 assume !(0 != test_~tmp___0~1#1); 765#L736-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 793#L746 assume 0 != test_~tmp___2~0#1; 820#L752-2 assume { :begin_inline_timeShift } true; 821#L535 assume !(0 != ~pumpRunning~0); 836#L535-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 832#L593 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 814#L567-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 714#L855-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 715#L860-1 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 822#L695-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 823#L695-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 739#L701-1 processEnvironment__wrappee__highWaterSensor_#t~ret28#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret28#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1; 740#L571-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 841#L559-2 assume { :end_inline_processEnvironment__wrappee__base } true; 851#L567-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 800#L593-1 assume { :end_inline_processEnvironment } true; 801#L542-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 752#L815-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 742#L884 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 744#L890-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 777#L552 assume { :end_inline_timeShift } true; 778#L716-2 [2022-11-16 12:37:20,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-16 12:37:20,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755547060] [2022-11-16 12:37:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:20,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,127 INFO L85 PathProgramCache]: Analyzing trace with hash -875885171, now seen corresponding path program 1 times [2022-11-16 12:37:20,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658111397] [2022-11-16 12:37:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:20,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,142 INFO L85 PathProgramCache]: Analyzing trace with hash -500597431, now seen corresponding path program 1 times [2022-11-16 12:37:20,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577507747] [2022-11-16 12:37:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:20,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:20,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577507747] [2022-11-16 12:37:20,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577507747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:20,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:20,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:37:20,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924102221] [2022-11-16 12:37:20,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:20,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:20,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:37:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:37:20,547 INFO L87 Difference]: Start difference. First operand 210 states and 269 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:37:20,705 INFO L93 Difference]: Finished difference Result 725 states and 924 transitions. [2022-11-16 12:37:20,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 725 states and 924 transitions. [2022-11-16 12:37:20,712 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 531 [2022-11-16 12:37:20,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 725 states to 725 states and 924 transitions. [2022-11-16 12:37:20,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 725 [2022-11-16 12:37:20,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 725 [2022-11-16 12:37:20,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 725 states and 924 transitions. [2022-11-16 12:37:20,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:20,723 INFO L218 hiAutomatonCegarLoop]: Abstraction has 725 states and 924 transitions. [2022-11-16 12:37:20,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states and 924 transitions. [2022-11-16 12:37:20,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 413. [2022-11-16 12:37:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 413 states have (on average 1.2663438256658595) internal successors, (523), 412 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 523 transitions. [2022-11-16 12:37:20,768 INFO L240 hiAutomatonCegarLoop]: Abstraction has 413 states and 523 transitions. [2022-11-16 12:37:20,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:37:20,784 INFO L428 stractBuchiCegarLoop]: Abstraction has 413 states and 523 transitions. [2022-11-16 12:37:20,784 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 12:37:20,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 413 states and 523 transitions. [2022-11-16 12:37:20,787 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 292 [2022-11-16 12:37:20,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:37:20,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:37:20,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:20,788 INFO L748 eck$LassoCheckResult]: Stem: 1834#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1730#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1661#L931 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1662#L924 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1793#L939 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1762#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1763#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1734#L716-2 [2022-11-16 12:37:20,789 INFO L750 eck$LassoCheckResult]: Loop: 1734#L716-2 assume !false; 1689#L717 assume test_~splverifierCounter~0#1 < 4; 1690#L718 test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1803#L726 assume !(0 != test_~tmp~7#1); 1782#L726-2 test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1719#L736 assume !(0 != test_~tmp___0~1#1); 1721#L736-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1750#L746 assume 0 != test_~tmp___2~0#1; 1778#L752-2 assume { :begin_inline_timeShift } true; 1779#L535 assume !(0 != ~pumpRunning~0); 2034#L535-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1788#L593 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1773#L567-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1667#L855-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1668#L860-1 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 1780#L695-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1781#L695-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1692#L701-1 processEnvironment__wrappee__highWaterSensor_#t~ret28#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret28#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1; 1693#L571-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1810#L559-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1818#L567-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1757#L593-1 assume { :end_inline_processEnvironment } true; 1758#L542-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1759#L815-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1696#L884 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1697#L847 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1826#L890 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2028#L890-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1733#L552 assume { :end_inline_timeShift } true; 1734#L716-2 [2022-11-16 12:37:20,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-16 12:37:20,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217420131] [2022-11-16 12:37:20,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:20,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,825 INFO L85 PathProgramCache]: Analyzing trace with hash 89193952, now seen corresponding path program 1 times [2022-11-16 12:37:20,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046658236] [2022-11-16 12:37:20,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:20,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:20,854 INFO L85 PathProgramCache]: Analyzing trace with hash -36540772, now seen corresponding path program 1 times [2022-11-16 12:37:20,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:20,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008512356] [2022-11-16 12:37:20,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:20,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:20,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:37:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:25,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:37:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:37:25,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:37:25 BoogieIcfgContainer [2022-11-16 12:37:25,753 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:37:25,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:37:25,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:37:25,755 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:37:25,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:18" (3/4) ... [2022-11-16 12:37:25,758 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 12:37:25,855 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:37:25,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:37:25,857 INFO L158 Benchmark]: Toolchain (without parser) took 9049.78ms. Allocated memory was 117.4MB in the beginning and 207.6MB in the end (delta: 90.2MB). Free memory was 85.5MB in the beginning and 71.6MB in the end (delta: 13.9MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. [2022-11-16 12:37:25,857 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:37:25,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.14ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 84.2MB in the end (delta: 1.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:37:25,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.97ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 80.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:37:25,859 INFO L158 Benchmark]: Boogie Preprocessor took 92.28ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:37:25,859 INFO L158 Benchmark]: RCFGBuilder took 1010.33ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 78.0MB in the beginning and 132.3MB in the end (delta: -54.3MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-11-16 12:37:25,860 INFO L158 Benchmark]: BuchiAutomizer took 7083.86ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 132.3MB in the beginning and 74.6MB in the end (delta: 57.6MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. [2022-11-16 12:37:25,861 INFO L158 Benchmark]: Witness Printer took 101.56ms. Allocated memory is still 207.6MB. Free memory was 74.6MB in the beginning and 71.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:37:25,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.14ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 84.2MB in the end (delta: 1.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.97ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 80.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.28ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1010.33ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 78.0MB in the beginning and 132.3MB in the end (delta: -54.3MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 7083.86ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 132.3MB in the beginning and 74.6MB in the end (delta: 57.6MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. * Witness Printer took 101.56ms. Allocated memory is still 207.6MB. Free memory was 74.6MB in the beginning and 71.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 413 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 6.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 312 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1508 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1508 mSDsluCounter, 1711 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1008 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 703 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 716]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L773] int methaneLevelCritical = 0; [L527] int pumpRunning = 0; [L772] int waterLevel = 1; [L528] int systemActive = 1; [L50] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L935] int retValue_acc ; [L938] retValue_acc = 1 [L939] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L707] int splverifierCounter ; [L708] int tmp ; [L709] int tmp___0 ; [L710] int tmp___1 ; [L711] int tmp___2 ; [L714] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L716] COND TRUE 1 [L718] COND TRUE splverifierCounter < 4 [L724] tmp = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp)) [L734] tmp___0 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___0)) [L744] tmp___2 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___2) [L759] CALL timeShift() [L535] COND FALSE !(\read(pumpRunning)) [L542] COND TRUE \read(systemActive) [L544] CALL processEnvironment() [L590] int tmp ; [L593] COND FALSE !(\read(pumpRunning)) [L608] CALL processEnvironment__wrappee__highWaterSensor() [L564] int tmp ; [L567] COND TRUE ! pumpRunning [L569] CALL, EXPR isHighWaterLevel() [L687] int retValue_acc ; [L688] int tmp ; [L689] int tmp___0 ; [L693] CALL, EXPR isHighWaterSensorDry() [L852] int retValue_acc ; [L855] COND TRUE waterLevel < 2 [L856] retValue_acc = 1 [L857] return (retValue_acc); [L693] RET, EXPR isHighWaterSensorDry() [L693] tmp = isHighWaterSensorDry() [L695] COND TRUE \read(tmp) [L696] tmp___0 = 0 [L700] retValue_acc = tmp___0 [L701] return (retValue_acc); [L569] RET, EXPR isHighWaterLevel() [L569] tmp = isHighWaterLevel() [L571] COND FALSE !(\read(tmp)) [L577] FCALL processEnvironment__wrappee__base() [L608] RET processEnvironment__wrappee__highWaterSensor() [L544] RET processEnvironment() [L550] CALL __utac_acc__Specification3_spec__1() [L876] int tmp ; [L877] int tmp___0 ; [L878] int tmp___1 ; [L882] CALL, EXPR isMethaneLevelCritical() [L811] int retValue_acc ; [L814] retValue_acc = methaneLevelCritical [L815] return (retValue_acc); [L882] RET, EXPR isMethaneLevelCritical() [L882] tmp = isMethaneLevelCritical() [L884] COND FALSE !(\read(tmp)) [L888] CALL, EXPR getWaterLevel() [L843] int retValue_acc ; [L846] retValue_acc = waterLevel [L847] return (retValue_acc); [L888] RET, EXPR getWaterLevel() [L888] tmp___0 = getWaterLevel() [L890] COND FALSE !(tmp___0 == 2) [L550] RET __utac_acc__Specification3_spec__1() [L759] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 716]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L773] int methaneLevelCritical = 0; [L527] int pumpRunning = 0; [L772] int waterLevel = 1; [L528] int systemActive = 1; [L50] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L935] int retValue_acc ; [L938] retValue_acc = 1 [L939] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L707] int splverifierCounter ; [L708] int tmp ; [L709] int tmp___0 ; [L710] int tmp___1 ; [L711] int tmp___2 ; [L714] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L716] COND TRUE 1 [L718] COND TRUE splverifierCounter < 4 [L724] tmp = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp)) [L734] tmp___0 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___0)) [L744] tmp___2 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___2) [L759] CALL timeShift() [L535] COND FALSE !(\read(pumpRunning)) [L542] COND TRUE \read(systemActive) [L544] CALL processEnvironment() [L590] int tmp ; [L593] COND FALSE !(\read(pumpRunning)) [L608] CALL processEnvironment__wrappee__highWaterSensor() [L564] int tmp ; [L567] COND TRUE ! pumpRunning [L569] CALL, EXPR isHighWaterLevel() [L687] int retValue_acc ; [L688] int tmp ; [L689] int tmp___0 ; [L693] CALL, EXPR isHighWaterSensorDry() [L852] int retValue_acc ; [L855] COND TRUE waterLevel < 2 [L856] retValue_acc = 1 [L857] return (retValue_acc); [L693] RET, EXPR isHighWaterSensorDry() [L693] tmp = isHighWaterSensorDry() [L695] COND TRUE \read(tmp) [L696] tmp___0 = 0 [L700] retValue_acc = tmp___0 [L701] return (retValue_acc); [L569] RET, EXPR isHighWaterLevel() [L569] tmp = isHighWaterLevel() [L571] COND FALSE !(\read(tmp)) [L577] FCALL processEnvironment__wrappee__base() [L608] RET processEnvironment__wrappee__highWaterSensor() [L544] RET processEnvironment() [L550] CALL __utac_acc__Specification3_spec__1() [L876] int tmp ; [L877] int tmp___0 ; [L878] int tmp___1 ; [L882] CALL, EXPR isMethaneLevelCritical() [L811] int retValue_acc ; [L814] retValue_acc = methaneLevelCritical [L815] return (retValue_acc); [L882] RET, EXPR isMethaneLevelCritical() [L882] tmp = isMethaneLevelCritical() [L884] COND FALSE !(\read(tmp)) [L888] CALL, EXPR getWaterLevel() [L843] int retValue_acc ; [L846] retValue_acc = waterLevel [L847] return (retValue_acc); [L888] RET, EXPR getWaterLevel() [L888] tmp___0 = getWaterLevel() [L890] COND FALSE !(tmp___0 == 2) [L550] RET __utac_acc__Specification3_spec__1() [L759] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:37:25,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c9b85a7-084f-425c-b5b7-f375e1ec842f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)